EP1233093A1 - Sliderneedle - Google Patents

Sliderneedle Download PDF

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Publication number
EP1233093A1
EP1233093A1 EP02405107A EP02405107A EP1233093A1 EP 1233093 A1 EP1233093 A1 EP 1233093A1 EP 02405107 A EP02405107 A EP 02405107A EP 02405107 A EP02405107 A EP 02405107A EP 1233093 A1 EP1233093 A1 EP 1233093A1
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EP
European Patent Office
Prior art keywords
needle
slide
hook
relative
sliding
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
EP02405107A
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German (de)
French (fr)
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EP1233093B1 (en
Inventor
Marcello Baseggio
Michel Prost
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Steiger Participations SA
Original Assignee
Atelier de Construction Steiger SA
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Publication of EP1233093A1 publication Critical patent/EP1233093A1/en
Application granted granted Critical
Publication of EP1233093B1 publication Critical patent/EP1233093B1/en
Anticipated expiration legal-status Critical
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    • D—TEXTILES; PAPER
    • D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
    • D04B—KNITTING
    • D04B35/00—Details of, or auxiliary devices incorporated in, knitting machines, not otherwise provided for
    • D04B35/02—Knitting tools or instruments not provided for in group D04B15/00 or D04B27/00
    • D04B35/06—Sliding-tongue needles

Definitions

  • the invention relates to a sliding needle for knitting machine comprising a needle provided with a hook and a slide overlapping at least partially the needle and provided with at least one heel, a beak and a shoulder, the bottom of this slide being split longitudinally in its distal region comprising the spout and the shoulder so as to allow the nozzle to be moved apart by the needle or by a opposite needle or slide, the slide being movable relative to the needle to close and open the hook of the needle and to train a mesh by his shoulder.
  • the trajectory of the end of the slide is however not sufficiently sufficiently ensured and moreover, due to the general design of the needle, the slide cannot move beyond it of the needle hook, but only performs one back and forth movement between a low position and a high position, relatively to the bottom of the slides.
  • the present invention also aims to allow to knit finer and more regular stitches, and, moreover, to facilitate mesh transfers to one or more receiving elements.
  • the sliding needle according to the invention is characterized in that it has means of positioning and vertical guide of the slide in all positions of the slide during its movement relative to the needle, these guide means and vertical positioning being exclusively and integrally formed by particular forms needle and runner and such as runner moves along a trajectory at all points controlled non-straight with elevations and cuts.
  • these guide means By ensuring perfectly controlled guidance of the slides, these guide means have the effect of reduce vertical traction as much as possible on the mesh and, consequently, its enlargement. he it is thus possible to knit finer stitches and more regular.
  • the bottom of the slide is open between the heel and about the middle of the slide and the needle is an arm extending from back to front, substantially parallel to the body of the needle, this arms crossing the slide by its open bottom for extend over the full part of the slide so as to form, with the body of the needle, a fork in which the slide is guided.
  • the interior sides of said fork, as well as the bottom and back of the part full of the slide, are advantageously shaped cams ensuring the non-rectilinear movement of the slide, i.e. its rise and fall relative to the needle.
  • the slide presents, at the rear, at least one fulcrum cooperating with the needle body to prevent tipping inadvertent of the slide and / or to induce a displacement in a vertical plane of the rear of the slides relative to the needle.
  • at least one of the sides of the needle body on which rests on the fulcrum is cam-shaped.
  • Figure 1 is a side view of the needle slides.
  • Figure 2 shows the needle and the slide separate from each other.
  • Figure 3 is an enlarged top view of the front part of the slide.
  • Figures 4 to 11 show eight successive positions of the slide relative to the needle of a position extreme to the other especially in the case of a transfer of mesh.
  • the sliding needle consists of a needle 1 and a slide 2 overlapping the needle 1 so similar to the sliding needle slide described in document EP-A-0 881 315.
  • runner 2 has an inverted U-shaped profile, but over only part of its length for reasons which will appear later.
  • the needle 1 is provided, in a conventional manner, of a hook 3.
  • the needle 1 is provided with a heel 4 for its driven by the cams of a cam holder.
  • the needle could however be driven by a key.
  • the needle is provided an arm 5 extending forwards, above the needle proper, parallel to the axis longitudinal of the needle, i.e. to the direction displacement of this needle in its needle bed.
  • the needle 1 and the arm 5 form a fork 6 of which the inner sides 7 and 8 have a non-contoured straight, cam-shaped.
  • the 7-shaped side cam extends beyond the fork 6 where it has a depression 9 followed by a ramp 10 rising towards forward. In front of this ramp 10, the needle goes thinning, in known manner, along a ramp downward 11 to hook 3.
  • the slide 2 has at the front a spout 12 located in front a shoulder 13 and it is provided at the rear with a heel 14 for his training.
  • the back of the slide 2 is deleted in two places, on the one hand in its distal part, in front of a point 15 located slightly behind the shoulder 13 and, on the other hand, in its rear half 16, between heel 14 and a point 17 located approximately halfway down the runner.
  • Interruption 16 at the bottom of the slide forms a width cut corresponding to the thickness of the needle. This cut is crossed by the arm 5 of the needle which extends above the slide proper, i.e. from area 29 of the slide in which the bottom of the slide is not interrupted. This zone 29 presents externally, at the front a ramp 19 terminated by a nose 20 and, at the rear, a slight boss 21. Internally, the bottom of the slide has a first boss 22 in its front part and a second boss 23 at the rear. Between these bosses the bottom of the slide shows a slight depression.
  • runner 2 has two supporting points 33 and 34 cooperating respectively with the upper 35 and lower sides 36 of the needle body to prevent tipping untimely backstage. These support points can further be used to induce movement additional backstage relative to the needle, for example to retract his heel 14 relative to a cam of the cam carriage or for get a finer and more precise movement of its beak 12.
  • at least one of the sides 35, 36 of the body of the needle is not straight, that is to say shaped cam.
  • the fulcrum 33 is formed by a boss from the bottom of the slide and the fulcrum 34 is formed, for example, by repelling material from runner walls.
  • zone 29 of the slide is located in the fork 6 of the needle, which ensures the non-rectilinear guide of the slide 2 during its displacement.
  • the slide is shown in its rearmost position on the needle. In this position, the boss 24 of the arm 5 of the needle is in contact with the nose 20 of the slide, which has the effect of positioning the spout 12 of the slides in a low position with minimum height relative to the needle. In this position, the two sides of the nozzle 12 are separated by the needle 1 and thus the spout 12 and the depression located behind this beak are found at all points below the edge upper needle.
  • the slide 2 is positioned in the fork 6 by its nose 20 and its boss 22.
  • the spout 12 of the slide open, is located below the upper edge of needle 1.
  • the two sides of the spout 12 rest on the sides of the needle on two millings 30 which reduce the thickness of the needle and therefore the opening of the spout 12 so as not to exceed the width of the slides.
  • the mesh 31 is carried by needle 1 so that it exerts no pressure on slide 2 which is cantilevered and prevents braking of the slide.
  • the spout 12 is located at that moment at a height H1 from the edge lower of the needle, i.e. compared to the bottom of the groove of the needle bed in which slides the needle. This level H1 is the minimum level of the nozzle 12 on the path of the slide.
  • the slide 2 continues its advance by relying on the constant level upper part 26 of the needle, that is to say by keeping the level H2, as shown in Figure 6.
  • slide 2 comes over the hook 3 of the needle by its beak 12, as represented in figure 8.
  • This movement corresponds to the closing movement of a conventional needle valve by its valve.
  • the mesh 31 can be entered by an opposite needle (carryover) or by a slide (punching) as described in the Patent EP 0 881 315, that is to say by the introduction of this needle or this slide in the spout 12.
  • the slide could totally overlap the needle and it could be with two or more heels. Behind the scenes could present, at the rear, a single point of support, by example support point 34 (figure 2)

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  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Knitting Machines (AREA)
  • Infusion, Injection, And Reservoir Apparatuses (AREA)

Abstract

Sliding-tongue compound needle comprising a needle (1) equipped with a hook (3) and with a sliding tongue (2) straddling the needle and equipped with an end (12) and with a shoulder (13), the bottom of the sliding tongue being longitudinally slotted in its distal region comprising the end (12) and the shoulder (13) so as to allow the end to be parted, the sliding tongue being movable relative to the needle to close and open the hook of the needle and to carry a stitch by its shoulder. This needle has means (6) for the vertical guidance of the sliding tongue (2) as it moves relative to the needle (1) so that the sliding tongue moves in a non-rectilinear path.

Description

L'invention concerne une aiguille à coulisse pour machine à tricoter comprenant une aiguille munie d'un crochet et une coulisse chevauchant au moins partiellement l'aiguille et munie d'au moins un talon, d'un bec et d'un épaulement, le fond de cette coulisse étant fendu longitudinalement dans sa région distale comprenant le bec et l'épaulement de manière à permettre l'écartement du bec par l'aiguille ou par une aiguille ou une coulisse opposées, la coulisse étant déplaçable relativement à l'aiguille pour fermer et ouvrir le crochet de l'aiguille et pour entraíner une maille par son épaulement.The invention relates to a sliding needle for knitting machine comprising a needle provided with a hook and a slide overlapping at least partially the needle and provided with at least one heel, a beak and a shoulder, the bottom of this slide being split longitudinally in its distal region comprising the spout and the shoulder so as to allow the nozzle to be moved apart by the needle or by a opposite needle or slide, the slide being movable relative to the needle to close and open the hook of the needle and to train a mesh by his shoulder.

Une telle aiguille est décrite dans la demande de brevet EP 0 881 315 au nom du demandeur. Dans l'exécution décrite dans ce document le fond de la coulisse et le bord supérieur de l'aiguille sont rectilignes et parallèles à la direction de déplacement de l'aiguille. Le déplacement de la coulisse est donc également rectiligne et parallèle à la direction de déplacement de l'aiguille. En raison de cette conformation, lorsque l'aiguille avance relativement à la coulisse pour venir en position de préparation de report de maille, la maille à reporter doit monter sur une rampe de l'aiguille jusqu'à ce qu'elle se trouve pratiquement au niveau du fond de la coulisse. Ceci a pour effet d'exercer sur la maille une traction vers le haut qui a pour effet d'agrandir la maille. Cet effet est encore renforcé lorsque la coulisse avance en entraínant la maille au-dessus du crochet de l'aiguille, le bec et l'épaulement de la coulisse passant largement au-dessus du crochet de l'aiguille. La finesse des mailles susceptibles d'être tricotée est donc limitée.Such a needle is described in the application for Patent EP 0 881 315 in the name of the applicant. In the execution described in this document the bottom of the slide and the upper edge of the needle are straight and parallel to the direction of travel of the needle. The displacement of the slide is therefore also straight and parallel to the direction of moving the needle. Because of this conformation, when the needle advances relative to the backstage to come in the preparation position of transfer of mesh, the mesh to be transferred must go up on a needle ramp until it sits practically at the bottom of the slide. This has for effect of exerting on the mesh a traction towards the high which has the effect of enlarging the mesh. This effect is further reinforced when the slide advances entraining the mesh above the hook the needle, the beak and the shoulder of the slide passing well above the needle hook. The fineness of the knits that can be knitted is therefore limited.

Dans une aiguille à coulisse de type antérieur conventionnel, c'est-à-dire dans laquelle l'aiguille, en forme de glissière, munie d'un crochet d'aiguille est située sous un coulisseau venant fermer et ouvrir le crochet, il a été proposé, dans le brevet FR 2 652 593, de prévoir des moyens pour élever et abaisser le coulisseau relativement au fond de la rainure de l'aiguille de manière à réduire le frottement et la traction sur la maille portée par l'aiguille et obtenir des mailles plus régulières. Ces moyens sont constitués, d'une part, par un appui dans le fond de la rainure de l'aiguille et, d'autre part, par un effet de levier exercé par le poussoir de l'aiguille. La trajectoire de l'extrémité du coulisseau n'est toutefois pas assurée de manière suffisamment précise et de plus, en raison de la conception générale de l'aiguille, le coulisseau ne peut pas se déplacer au-delà du crochet de l'aiguille, mais n'effectue qu'un mouvement de va et vient entre une position basse et une position haute, relativement au fond de la coulisse.In an anterior type sliding needle conventional, that is to say in which the needle, slide-shaped, with needle hook is located under a slide that closes and opens the hook, it has been proposed, in patent FR 2 652 593, to provide means for raising and lowering the slide relative to the bottom of the groove the needle so as to reduce friction and pull on the mesh carried by the needle and obtain more regular stitches. These means are made up, on the one hand, by a support in the bottom of the groove of the needle and, on the other hand, by an effect of lever exerted by the needle plunger. The trajectory of the end of the slide is however not sufficiently sufficiently ensured and moreover, due to the general design of the needle, the slide cannot move beyond it of the needle hook, but only performs one back and forth movement between a low position and a high position, relatively to the bottom of the slides.

La présente invention a également pour but de permettre de tricoter des mailles plus fines et plus régulières, et, de plus, de faciliter les transferts de mailles vers un ou plusieurs éléments de réception. The present invention also aims to allow to knit finer and more regular stitches, and, moreover, to facilitate mesh transfers to one or more receiving elements.

A cet effet, l'aiguille à coulisse selon l'invention est caractérisée en ce qu'elle présente des moyens de positionnement et de guidage vertical de la coulisse en toutes positions de la coulisse lors de son déplacement relatif par rapport à l'aiguille, ces moyens de guidage et de positionnement vertical étant exclusivement et intégralement constitués par des formes particulières de l'aiguille et de la coulisse et tels que la coulisse se déplace selon une trajectoire en tous points contrôlée non rectiligne présentant des élévations et des abaissements.To this end, the sliding needle according to the invention is characterized in that it has means of positioning and vertical guide of the slide in all positions of the slide during its movement relative to the needle, these guide means and vertical positioning being exclusively and integrally formed by particular forms needle and runner and such as runner moves along a trajectory at all points controlled non-straight with elevations and cuts.

En assurant un guidage parfaitement contrôlé de la coulisse, ces moyens de guidage ont pour effet de réduire autant qu'il est possible la traction verticale sur la maille et, par conséquent son agrandissement. Il est ainsi possible de tricoter des mailles plus fines et plus régulières.By ensuring perfectly controlled guidance of the slides, these guide means have the effect of reduce vertical traction as much as possible on the mesh and, consequently, its enlargement. he it is thus possible to knit finer stitches and more regular.

Selon un mode d'exécution préféré de l'invention, le fond de la coulisse est ouvert entre le talon et environ le milieu de la coulisse et l'aiguille présente un bras s'étendant de l'arrière vers l'avant, sensiblement parallèlement au corps de l'aiguille, ce bras traversant la coulisse par son fond ouvert pour s'étendre au-dessus de la partie pleine de la coulisse de manière à former, avec le corps de l'aiguille, une fourche dans laquelle est guidée la coulisse.According to a preferred embodiment of the invention, the bottom of the slide is open between the heel and about the middle of the slide and the needle is an arm extending from back to front, substantially parallel to the body of the needle, this arms crossing the slide by its open bottom for extend over the full part of the slide so as to form, with the body of the needle, a fork in which the slide is guided.

Pour assurer le guidage, les côtés intérieurs de ladite fourche, ainsi que le fond et le dos de la partie pleine de la coulisse, sont avantageusement en forme de cames assurant le mouvement non rectiligne de la coulisse, c'est-à-dire son élévation et son abaissement relativement à l'aiguille.To provide guidance, the interior sides of said fork, as well as the bottom and back of the part full of the slide, are advantageously shaped cams ensuring the non-rectilinear movement of the slide, i.e. its rise and fall relative to the needle.

Selon un mode d'exécution, la coulisse présente, à l'arrière, au moins un point d'appui coopérant avec le corps de l'aiguille pour empêcher le basculement intempestif de la coulisse et/ou pour induire un déplacement dans un plan vertical de l'arrière de la coulisse relativement à l'aiguille. Dans ce dernier cas, l'un des côtés au moins du corps de l'aiguille sur lequel s'appuie le point d'appui est en forme de came.According to one embodiment, the slide presents, at the rear, at least one fulcrum cooperating with the needle body to prevent tipping inadvertent of the slide and / or to induce a displacement in a vertical plane of the rear of the slides relative to the needle. In this last case, at least one of the sides of the needle body on which rests on the fulcrum is cam-shaped.

Le dessin annexé représente, à titre d'exemple, un mode d'exécution de l'invention.The accompanying drawing shows, by way of example, a mode of the invention.

La figure 1 est une vue latérale de l'aiguille à coulisse.Figure 1 is a side view of the needle slides.

La figure 2 représente l'aiguille et la coulisse séparées l'une de l'autre.Figure 2 shows the needle and the slide separate from each other.

La figure 3 est une vue de dessus, agrandie, de la partie antérieure de la coulisse.Figure 3 is an enlarged top view of the front part of the slide.

Les figures 4 à 11 montrent huit positions successives de la coulisse relativement à l'aiguille d'une position extrême à l'autre en particulier dans le cas d'un report de maille.Figures 4 to 11 show eight successive positions of the slide relative to the needle of a position extreme to the other especially in the case of a transfer of mesh.

La forme de l'aiguille et de la coulisse sera tout d'abord décrite en relation aux figures 1 à 3. The shape of the needle and the slide will be all first described in relation to Figures 1 to 3.

L'aiguille à coulisse est constituée d'une aiguille 1 et d'une coulisse 2 chevauchant l'aiguille 1 de manière similaire à la coulisse de l'aiguille à coulisse décrite dans le document EP-A-0 881 315. A cet effet, la coulisse 2 présente un profil en U renversé, mais sur une partie seulement de sa longueur pour des raisons qui apparaítront plus loin.The sliding needle consists of a needle 1 and a slide 2 overlapping the needle 1 so similar to the sliding needle slide described in document EP-A-0 881 315. To this end, runner 2 has an inverted U-shaped profile, but over only part of its length for reasons which will appear later.

L'aiguille 1 est munie, de manière conventionnelle, d'un crochet 3. Dans le mode d'exécution représenté, l'aiguille 1 est munie d'un talon 4 pour son entraínement par les cames d'un porte-cames. L'aiguille pourrait cependant être entraínée par une clavette. Approximativement en son milieu, l'aiguille est munie d'un bras 5 s'étendant vers l'avant, au-dessus de l'aiguille proprement dite, parallèlement à l'axe longitudinal de l'aiguille, c'est-à-dire à la direction de déplacement de cette aiguille dans sa fonture. L'aiguille 1 et le bras 5 forment une fourche 6 dont les côtés intérieurs 7 et 8 présentent un contour non rectiligne, en forme de came. Le côté 7 en forme de came se prolonge au-delà de la fourche 6 où il présente une dépression 9 suivie d'une rampe 10 s'élevant vers l'avant. En avant de cette rampe 10, l'aiguille va s'amincissant, de manière connue, selon une rampe descendante 11 jusqu'au crochet 3.The needle 1 is provided, in a conventional manner, of a hook 3. In the embodiment shown, the needle 1 is provided with a heel 4 for its driven by the cams of a cam holder. The needle could however be driven by a key. Approximately in the middle, the needle is provided an arm 5 extending forwards, above the needle proper, parallel to the axis longitudinal of the needle, i.e. to the direction displacement of this needle in its needle bed. The needle 1 and the arm 5 form a fork 6 of which the inner sides 7 and 8 have a non-contoured straight, cam-shaped. The 7-shaped side cam extends beyond the fork 6 where it has a depression 9 followed by a ramp 10 rising towards forward. In front of this ramp 10, the needle goes thinning, in known manner, along a ramp downward 11 to hook 3.

La coulisse 2 présente à l'avant un bec 12 situé devant un épaulement 13 et elle est munie à l'arrière d'un talon 14 pour son entraínement. Le fond de la coulisse 2 est supprimé en deux endroits, d'une part dans sa partie distale, en avant d'un point 15 situé légèrement en arrière de l'épaulement 13 et, d'autre part, dans sa moitié arrière 16, entre le talon 14 et un point 17 situé approximativement à mi-longueur de la coulisse.The slide 2 has at the front a spout 12 located in front a shoulder 13 and it is provided at the rear with a heel 14 for his training. The back of the slide 2 is deleted in two places, on the one hand in its distal part, in front of a point 15 located slightly behind the shoulder 13 and, on the other hand, in its rear half 16, between heel 14 and a point 17 located approximately halfway down the runner.

Vue de dessus, la partie distale de la coulisse est représentée à la figure 3. L'interruption du profil en U de la coulisse forme une fente 18 qui se rétrécit à l'extrémité de la coulisse pour former le bec 12 à l'extrémité duquel les côtés de la fente 18 se rejoignent. Les deux côtés de la fente 18 peuvent s'écarter l'un de l'autre élastiquement.Top view, the distal part of the slide is represented in figure 3. The interruption of the profile in U of the slide forms a slot 18 which narrows at the end of the slide to form the spout 12 to the end of which the sides of the slot 18 are together. Both sides of slot 18 can move away from each other elastically.

L'interruption 16 du fond de la coulisse forme une découpe de largeur correspondant à l'épaisseur de l'aiguille. Cette découpe est traversée par le bras 5 de l'aiguille qui s'étend au-dessus de la coulisse proprement dite, c'est-à-dire de la zone 29 de la coulisse dans laquelle le fond de la coulisse n'est pas interrompu. Cette zone 29 présente extérieurement, à l'avant une rampe 19 terminée par un nez 20 et, à l'arrière, un léger bossage 21. Intérieurement, le fond de la coulisse présente un premier bossage 22 dans sa partie avant et un second bossage 23 à l'arrière. Entre ces bossages le fond de la coulisse présente une légère dépression.Interruption 16 at the bottom of the slide forms a width cut corresponding to the thickness of the needle. This cut is crossed by the arm 5 of the needle which extends above the slide proper, i.e. from area 29 of the slide in which the bottom of the slide is not interrupted. This zone 29 presents externally, at the front a ramp 19 terminated by a nose 20 and, at the rear, a slight boss 21. Internally, the bottom of the slide has a first boss 22 in its front part and a second boss 23 at the rear. Between these bosses the bottom of the slide shows a slight depression.

A l'arrière, à la hauteur du talon 14, la coulisse 2 présente deux points d'appui 33 et 34 coopérant respectivement avec les côtés supérieur 35 et inférieur 36 du corps de l'aiguille pour éviter le basculement intempestif de la coulisse. Ces points d'appui peuvent en outre être utilisés pour induire un mouvement supplémentaire de la coulisse relativement à l'aiguille, par exemple pour escamoter son talon 14 relativement à une came du chariot porte-cames ou pour obtenir un mouvement plus fin et plus précis de son bec 12. Dans ce cas au moins l'un des côtés 35, 36 du corps de l'aiguille est non rectiligne, c'est-à-dire en forme de came. Le point d'appui 33 est formé par un bossage du fond de la coulisse et le point d'appui 34 est formé, par exemple, par repoussage de la matière des parois de la coulisse.Back, at heel height 14, runner 2 has two supporting points 33 and 34 cooperating respectively with the upper 35 and lower sides 36 of the needle body to prevent tipping untimely backstage. These support points can further be used to induce movement additional backstage relative to the needle, for example to retract his heel 14 relative to a cam of the cam carriage or for get a finer and more precise movement of its beak 12. In this case at least one of the sides 35, 36 of the body of the needle is not straight, that is to say shaped cam. The fulcrum 33 is formed by a boss from the bottom of the slide and the fulcrum 34 is formed, for example, by repelling material from runner walls.

En ce qui concerne le profil intérieur de la fourchette 6 de l'aiguille, il présente, à partir de l'extrémité du bras 5, une rampe de dégagement 32 suivie d'un bossage 24, puis d'une légère dépression et d'un second bossage 25 faiblement marqué et, sur l'aiguille proprement dite, une partie haute 26 de niveau constant entre la dépression 9 et une rampe 27 aboutissant à une dépression 28.Regarding the inner profile of the fork 6 of the needle, it presents, from the end of arm 5, a release ramp 32 followed by a boss 24, then a slight depression and a second boss 25 weakly marked and, on the needle proper, a high part 26 of constant level between depression 9 and a ramp 27 leading to a depression 28.

Comme on peut le voir à la figure 1, lorsque l'aiguille est assemblée, la zone 29 de la coulisse est située dans la fourchette 6 de l'aiguille, laquelle assure le guidage non rectiligne de la coulisse 2 lors de son déplacement. A la figure 1, la coulisse est représentée dans sa position la plus en arrière sur l'aiguille. Dans cette position, le bossage 24 du bras 5 de l'aiguille est en appui sur le nez 20 de la coulisse, ce qui a pour effet de positionner le bec 12 de la coulisse dans une position basse de hauteur minimale relativement à l'aiguille. Dans cette position, les deux côtés du bec 12 sont écartés par l'aiguille 1 et ainsi le bec 12 et la dépression située en arrière de ce bec se trouvent en tous points en dessous du bord supérieur de l'aiguille.As can be seen in Figure 1, when the needle is assembled, zone 29 of the slide is located in the fork 6 of the needle, which ensures the non-rectilinear guide of the slide 2 during its displacement. In Figure 1, the slide is shown in its rearmost position on the needle. In this position, the boss 24 of the arm 5 of the needle is in contact with the nose 20 of the slide, which has the effect of positioning the spout 12 of the slides in a low position with minimum height relative to the needle. In this position, the two sides of the nozzle 12 are separated by the needle 1 and thus the spout 12 and the depression located behind this beak are found at all points below the edge upper needle.

Le mouvement complet de la coulisse sur l'aiguille sera maintenant décrit en relation aux figures 4 à 11 qui représentent huit positions successives de la coulisse relativement à l'aiguille à partir de la position représentée à la figure 1 qui est la même position que celle représentée à la figure 4.The full movement of the slide on the needle will be now described in relation to Figures 4 to 11 which represent eight successive positions of the slide relative to the needle from the position shown in Figure 1 which is the same position as that shown in Figure 4.

La séquence représentée illustre un report de maille.The sequence shown illustrates a carry over.

Dans la position représentée à la figure 4, la coulisse 2 est positionnée dans la fourchette 6 par son nez 20 et son bossage 22. Le bec 12 de la coulisse, ouvert, est situé en dessous du bord supérieur de l'aiguille 1. Les deux côté du bec 12 s'appuient sur les côtés de l'aiguille sur deux fraisages 30 qui réduisent l'épaisseur de l'aiguille et par conséquent l'ouverture du bec 12 de manière à ne pas dépasser la largeur de la coulisse. La maille à reporter 31 est portée par l'aiguille 1 de sorte qu'elle n'exerce aucune pression sur la coulisse 2 qui se trouve en porte-à-faux et évite un freinage de la coulisse. Le bec 12 se trouve à ce moment là à une hauteur H1 par rapport au bord inférieur de l'aiguille, c'est-à-dire par rapport au fond de la rainure de la fonture dans laquelle coulisse l'aiguille. Ce niveau H1 est le niveau minimal du bec 12 sur la trajectoire de la coulisse. In the position shown in Figure 4, the slide 2 is positioned in the fork 6 by its nose 20 and its boss 22. The spout 12 of the slide, open, is located below the upper edge of needle 1. The two sides of the spout 12 rest on the sides of the needle on two millings 30 which reduce the thickness of the needle and therefore the opening of the spout 12 so as not to exceed the width of the slides. The mesh 31 is carried by needle 1 so that it exerts no pressure on slide 2 which is cantilevered and prevents braking of the slide. The spout 12 is located at that moment at a height H1 from the edge lower of the needle, i.e. compared to the bottom of the groove of the needle bed in which slides the needle. This level H1 is the minimum level of the nozzle 12 on the path of the slide.

Lorsque la coulisse 2 avance, son bossage 22 monte sur la rampe 27 de l'aiguille pour arriver sur la partie haute 26 (figure 5). Vers le haut, la coulisse est retenue et guidée par le bossage 24 du bras 5 de l'aiguille. Cette ascension de la coulisse est juste suffisante pour que la dépression à l'arrière du bec 12 de la coulisse arrive légèrement au dessus du niveau de l'aiguille. Lors de cette ascension de la coulisse, le bec 12 se referme et la maille 31 est entraínée par l'épaulement 13 de la coulisse. Le niveau H2 atteint par le bec 12 de la coulisse est le niveau le plus haut relativement à l'aiguille atteint par la coulisse lors de son déplacement.When the slide 2 advances, its boss 22 rises on the ramp 27 of the needle to reach the part high 26 (figure 5). Up the slide is retained and guided by the boss 24 of the arm 5 of the needle. This backstage climb is just sufficient for the depression at the back of the spout 12 of the slide arrives slightly above the level of the needle. During this ascent of the backstage, the beak 12 closes and the mesh 31 is driven by the shoulder 13 of the slide. H2 level reached by the spout 12 of the slide is the highest level relative to the needle reached by the slide when of its displacement.

La coulisse 2 poursuit sont avance en s'appuyant sur la partie haute de niveau constant 26 de l'aiguille, c'est-à-dire en conservant le niveau H2, comme représenté à la figure 6.The slide 2 continues its advance by relying on the constant level upper part 26 of the needle, that is to say by keeping the level H2, as shown in Figure 6.

Le bossage 22 de la coulisse quitte ensuite la partie 26 de l'aiguille de telle sorte que le bec 12 de la coulisse descend en direction du crochet 3 de l'aiguille, comme représenté à la figure 7.The boss 22 of the slide then leaves the part 26 of the needle so that the nozzle 12 of the slide goes down towards hook 3 of the needle, as shown in Figure 7.

Poursuivant sa descente, la coulisse 2 vient coiffer le crochet 3 de l'aiguille par son bec 12, comme représenté à la figure 8. Ce mouvement correspond au mouvement de fermeture d'une aiguille conventionnelle à clapet par son clapet.Continuing its descent, slide 2 comes over the hook 3 of the needle by its beak 12, as represented in figure 8. This movement corresponds to the closing movement of a conventional needle valve by its valve.

La coulisse poursuivant sa progression, son bossage 22 arrive contre la rampe 10 de l'aiguille de telle sorte que la coulisse 2 et son bec 12 amorcent un mouvement ascendant (figure 9) qui se poursuit jusqu'à ce que le bec 12 atteint un niveau H4 (figure 10). Ce mouvement ascendant a pour but d'éviter que le crochet 3 de l'aiguille accroche des filaments de la maille 31 présente sur la coulisse.The backstage continuing to progress, its boss 22 arrives against the ramp 10 of the needle so that the slide 2 and its beak 12 initiate a movement ascending (Figure 9) which continues until the nozzle 12 reaches a level H4 (figure 10). This movement ascending aims to prevent the hook 3 from the needle catches the filaments of mesh 31 present on the backstage.

Une fois le crochet 3 passé, le bossage 22 de la coulisse 2 redescend le long de la rampe 11 de l'aiguille et la quitte alors que le bossage 23 prend le relais sur la face 26 de l'aiguille et le bec 12 atteint un niveau bas H5 et conserve ce niveau jusqu'au bout de son déplacement. Cette descente a pour effet d'éviter une déformation, par traction, de la maille 31 (figure 11).Once the hook 3 has passed, the boss 22 of the slide 2 goes down along ramp 11 of the needle and leaves it while the boss 23 takes the relay on the face 26 of the needle and the nozzle 12 reaches a low level H5 and keeps this level until end of its movement. This descent has the effect avoid deformation, by traction, of the mesh 31 (figure 11).

Dans la position représentée à la figure 11 la maille 31 peut être saisie par une aiguille opposée (report) ou par une coulisse (poinçonnage) comme décrit dans le brevet EP 0 881 315, c'est-à-dire par l'introduction de cette aiguille ou de cette coulisse dans le bec 12.In the position shown in Figure 11 the mesh 31 can be entered by an opposite needle (carryover) or by a slide (punching) as described in the Patent EP 0 881 315, that is to say by the introduction of this needle or this slide in the spout 12.

Dans des variantes d'exécution, la coulisse pourrait chevaucher totalement l'aiguille et elle pourrait être munie de deux talons ou plus. La coulisse pourrait présenter, à l'arrière, un seul point d'appui, par exemple le point d'appui 34 (figure 2)In execution variants, the slide could totally overlap the needle and it could be with two or more heels. Behind the scenes could present, at the rear, a single point of support, by example support point 34 (figure 2)

Claims (8)

Aiguille à coulisse pour machine à tricoter comprenant une aiguille (1) munie d'un crochet (3) et une coulisse (2) chevauchant au moins partiellement l'aiguille et munie d'au moins un talon (14), d'un bec (12) et d'un épaulement (13), le fond de la coulisse étant fendu longitudinalement dans sa région distale comprenant le bec (12) et l'épaulement (13) de manière à permettre l'écartement du bec, la coulisse étant déplaçable relativement à l'aiguille pour fermer et ouvrir le crochet de l'aiguille et pour entraíner une maille par son épaulement,
caractérisée en ce qu'elle présente des moyens de positionnement et de guidage vertical (6) de la coulisse (2) en toutes positions de la coulisse lors de son déplacement relatif par rapport à l'aiguille (1), ces moyens de guidage et de positionnement vertical étant exclusivement et intégralement constitués par des formes particulières de l'aiguille et de la coulisse et tels que la coulisse se déplace selon une trajectoire en tous points contrôlée non rectiligne présentant des élévations et des abaissements.Sliding needle for a knitting machine comprising a needle (1) provided with a hook (3) and a slide (2) at least partially overlapping the needle and provided with at least one heel (14), a beak (12) and a shoulder (13), the bottom of the slide being split longitudinally in its distal region comprising the spout (12) and the shoulder (13) so as to allow the spout to be separated, the slide being movable relative to the needle to close and open the hook of the needle and to cause a stitch by its shoulder,
characterized in that it has means for positioning and vertical guidance (6) of the slide (2) in all positions of the slide during its relative movement relative to the needle (1), these guide means and of vertical positioning being exclusively and integrally constituted by particular shapes of the needle and of the slide and such that the slide moves according to a non-rectilinear controlled path in all points having rises and falls. Aiguille à coulisse selon la revendication 1, caractérisée en ce que le fond de la coulisse (2) est ouvert (16) entre le talon (14) et environ le milieu (17) de la coulisse et que l'aiguille présente un bras (5) s'étendant de l'arrière vers l'avant sensiblement parallèlement au corps de l'aiguille, ce bras traversant la coulisse par son fond ouvert (16) pour s'étendre au-dessus de la partie pleine (29) de la coulisse, de manière à former, avec le corps de l'aiguille, une fourche (6) dans laquelle est guidée la coulisse.Draw needle according to claim 1, characterized in that the bottom of the slide (2) is open (16) between the heel (14) and about the middle (17) of the slide and that the needle has an arm ( 5) extending from the rear towards the front substantially parallel to the body of the needle, this arm crossing the slide by its open bottom (16) to extend above the solid part (29) of the slide, so as to form, with the body of the needle, a fork (6) in which the slide is guided. Aiguille à coulisse selon la revendication 2, caractérisée en ce que les côtés internes de ladite fourche (6) ainsi que le fond et le dos de la partie pleine (29) de la coulisse sont en forme de cames assurant le mouvement non rectiligne de la coulisse, c'est-à-dire son élévation et son abaissement relativement à l'aiguille.Sliding needle according to claim 2, characterized in that the internal sides of said fork (6) as well as the bottom and the back of the solid part (29) of the slide are in the form of cams ensuring the non-rectilinear movement of the slide, that is to say its raising and lowering relative to the needle. Aiguille à coulisse selon la revendication 3, caractérisée en ce que l'aiguille (1) présente deux fraisages latéraux (30) réduisant l'ouverture du bec (12) de la coulisse par l'aiguille lorsque le bec est abaissé au-dessous du bord supérieur de l'aiguille.Sliding needle according to claim 3, characterized in that the needle (1) has two lateral millings (30) reducing the opening of the beak (12) of the slide by the needle when the beak is lowered below the upper edge of the needle. Aiguille à coulisse selon l'une des revendications 1 à 4, caractérisée en ce que le guidage est tel que lorsque l'aiguille (1) est en position de préparation de report de maille, coulisse en retrait maximal relativement à l'aiguille et bec de coulisse au-dessous du bord supérieur de l'aiguille, la maille est supportée par l'aiguille.Sliding needle according to one of Claims 1 to 4, characterized in that the guide is such that when the needle (1) is in the position for preparing mesh transfer, the slide is at maximum withdrawal relative to the needle and spout backstage below the upper edge of the needle, the stitch is supported by the needle. Aiguille à coulisse selon la revendication 5, caractérisée en ce que le guidage est tel que lorsque la coulisse (2) avance à partir de sa position en retrait maximal en entraínant une maille, cette coulisse s'élève d'abord pour entraíner la maille sur son épaulement, puis redescend jusqu'à la position de fermeture du crochet de l'aiguille, puis remonte légèrement pour éviter un accrochage de filaments de maille par le crochet et finalement redescend de manière à réduire la traction sur la maille.Sliding needle according to claim 5, characterized in that the guide is such that when the slide (2) advances from its position in maximum withdrawal by driving a stitch, this slide rises first to drive the stitch on its shoulder, then goes back down to the closed position of the hook of the needle, then goes up slightly to avoid a hooking of mesh filaments by the hook and finally goes down so as to reduce the traction on the mesh. Aiguille selon l'une des revendications 1 à 6, caractérisée en ce que la coulisse présente, à l'arrière, au moins un point d'appui (33, 34) coopérant avec le corps de l'aiguille (35, 36) pour empêcher le basculement intempestif de la coulisse et/ou pour induire un déplacement dans un plan vertical de l'arrière de la coulisse relativement à l'aiguille.Needle according to one of claims 1 to 6, characterized in that the slide has, at the rear, at least one fulcrum (33, 34) cooperating with the body of the needle (35, 36) for prevent inadvertent tilting of the slide and / or to induce a displacement in a vertical plane of the rear of the slide relative to the needle. Aiguille selon la revendication 7, caractérisée en ce qu'au moins l'un des côtés (35, 36) du corps de l'aiguille sur lequel s'appuie le point d'appui (33, 34) est en forme de came.Needle according to Claim 7, characterized in that at least one of the sides (35, 36) of the body of the needle on which the bearing point (33, 34) is supported is in the form of a cam.
EP02405107A 2001-02-20 2002-02-13 Sliding-tongue compound needle for a knitting machine Expired - Lifetime EP1233093B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR0102272A FR2821093B1 (en) 2001-02-20 2001-02-20 SLIDING NEEDLE FOR KNITTING MACHINE
FR0102272 2001-02-20

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EP1233093A1 true EP1233093A1 (en) 2002-08-21
EP1233093B1 EP1233093B1 (en) 2005-11-23

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US (1) US6510712B2 (en)
EP (1) EP1233093B1 (en)
JP (1) JP4121286B2 (en)
KR (1) KR100825062B1 (en)
CN (1) CN1272494C (en)
AT (1) ATE310844T1 (en)
BR (1) BR0200461A (en)
DE (1) DE60207454T2 (en)
EA (1) EA004389B1 (en)
ES (1) ES2252417T3 (en)
FR (1) FR2821093B1 (en)
HK (1) HK1049030A1 (en)
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DE112005003021B4 (en) 2004-12-09 2019-04-25 Shima Seiki Mfg., Ltd. Flat knitting machine
EP3904578A1 (en) * 2020-04-29 2021-11-03 Groz-Beckert KG Compound needle for knitting machines

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JP4010169B2 (en) * 2002-04-09 2007-11-21 三菱自動車工業株式会社 Body structure
CN100436688C (en) * 2002-12-20 2008-11-26 株式会社岛精机制作所 Compound needle
JP3983720B2 (en) * 2003-06-25 2007-09-26 株式会社島精機製作所 Compound needle
JP4180541B2 (en) 2004-03-31 2008-11-12 株式会社島精機製作所 Pile knitting method with flat knitting machine
EP1757721B2 (en) † 2005-08-26 2015-12-30 H. Stoll GmbH & Co. KG Method for stitch transfer
JP5732316B2 (en) * 2010-06-18 2015-06-10 株式会社島精機製作所 Compound needle of flat knitting machine
JP5766430B2 (en) * 2010-11-22 2015-08-19 株式会社島精機製作所 Compound needle of flat knitting machine
JP5618778B2 (en) * 2010-11-22 2014-11-05 株式会社島精機製作所 Compound needle of flat knitting machine
DE102013105239A1 (en) * 2013-05-22 2014-11-27 Groz-Beckert Kg needle
CN103334223A (en) * 2013-07-04 2013-10-02 宁波慈星股份有限公司 Knitting needle for flat knitting machine
EP3597807B1 (en) * 2018-07-18 2021-02-24 Groz-Beckert KG Machine knitting tool, in particular machine knitting needle
TWI726304B (en) * 2018-08-20 2021-05-01 大康織機股份有限公司 Mechanism for the transfer of stitches from the needles of knitting machine and sewing
CN109750414B (en) * 2019-02-28 2024-02-06 宁波慈星股份有限公司 Compound needle of flat knitting machine
CN109706615B (en) * 2019-02-28 2023-09-29 宁波慈星股份有限公司 Compound needle in flat knitting machine
CN109750413B (en) * 2019-02-28 2023-09-29 宁波慈星股份有限公司 Composite needle for flat knitting machine
CN110438655B (en) * 2019-08-13 2024-04-02 宁波慈星股份有限公司 Compound needle of flat knitting machine

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DE112005003021B4 (en) 2004-12-09 2019-04-25 Shima Seiki Mfg., Ltd. Flat knitting machine
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CN115398052B (en) * 2020-04-29 2023-12-15 格罗兹-贝克特公司 Sliding needle for knitting machine

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EA200200181A1 (en) 2002-12-26
JP4121286B2 (en) 2008-07-23
US6510712B2 (en) 2003-01-28
BR0200461A (en) 2002-10-29
EP1233093B1 (en) 2005-11-23
ATE310844T1 (en) 2005-12-15
HK1049030A1 (en) 2003-04-25
JP2002294541A (en) 2002-10-09
FR2821093B1 (en) 2003-05-09
KR20020068278A (en) 2002-08-27
CN1272494C (en) 2006-08-30
TW553231U (en) 2003-09-11
DE60207454T2 (en) 2006-07-20
FR2821093A1 (en) 2002-08-23
KR100825062B1 (en) 2008-04-25
ES2252417T3 (en) 2006-05-16
CN1372028A (en) 2002-10-02
EA004389B1 (en) 2004-04-29
DE60207454D1 (en) 2005-12-29
US20020112509A1 (en) 2002-08-22

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