EP0189602A1 - Knitting machine - Google Patents

Knitting machine Download PDF

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Publication number
EP0189602A1
EP0189602A1 EP85200092A EP85200092A EP0189602A1 EP 0189602 A1 EP0189602 A1 EP 0189602A1 EP 85200092 A EP85200092 A EP 85200092A EP 85200092 A EP85200092 A EP 85200092A EP 0189602 A1 EP0189602 A1 EP 0189602A1
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EP
European Patent Office
Prior art keywords
needle
heel
key
ramp
knitting machine
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
EP85200092A
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German (de)
French (fr)
Other versions
EP0189602B1 (en
Inventor
Marcello Baseggio
Louis Frund
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Atelier de Construction Steiger SA
Original Assignee
Atelier de Construction Steiger SA
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Atelier de Construction Steiger SA filed Critical Atelier de Construction Steiger SA
Priority to EP85200092A priority Critical patent/EP0189602B1/en
Priority to DE8585200092T priority patent/DE3569269D1/en
Priority to US06/820,699 priority patent/US4621506A/en
Priority to DD86286515A priority patent/DD241621A5/en
Priority to JP61014909A priority patent/JPH0730493B2/en
Priority to ES551349A priority patent/ES8705540A1/en
Publication of EP0189602A1 publication Critical patent/EP0189602A1/en
Application granted granted Critical
Publication of EP0189602B1 publication Critical patent/EP0189602B1/en
Expired legal-status Critical Current

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    • D—TEXTILES; PAPER
    • D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
    • D04B—KNITTING
    • D04B15/00—Details of, or auxiliary devices incorporated in, weft knitting machines, restricted to machines of this kind
    • D04B15/66—Devices for determining or controlling patterns ; Programme-control arrangements
    • D04B15/68—Devices for determining or controlling patterns ; Programme-control arrangements characterised by the knitting instruments used

Definitions

  • the present invention relates to a knitting machine comprising at least one needle bed in the grooves of which are housed sliding needles having at least one heel capable of occupying two levels relative to the plane of the needle bed, one in which the heel can be driven by the cams of the cam holder and the other in which the heel is out of the path of these cams, means for acting on said heels to put them in the positions corresponding to these two levels, one of these means being constituted by a cam pushing the heels back into their low level, and keys associated with each needle to bring them into the working position, in which they can be driven by the working cams.
  • the needles are provided with an elastic extension in the form of a hairpin, which may or may not come in one piece with the needle itself.
  • the end of this pin carries the heel of the needle.
  • the pin By means of a cam, the pin can be bent and by pulling it back a span of the pin is hooked behind a special bar so as to keep the heel in the submerged position.
  • the bend of the elastic pin however constitutes a weak point, even if this pin or the entire needle, in the case where the needle and the pin came in one piece, is made of high strength steel. In any case, such a needle is expensive to manufacture.
  • the present invention aims to achieve a retraction of the heels of the needles out of work by more robust and reliable means, using neither elasticity, nor delicate articulation.
  • the knitting machine concerned can be either a straight machine with one needle bed or two needle beds or a circular machine.
  • the needle bed 1 is shown in a horizontal position, but it is obvious that it is used in the inclined position.
  • a groove 2 in which is housed a needle 3 provided with a hook 4 well known per se and a heel 5 at its end.
  • the needle 3 is guided between the bottom of the groove and a bar 6, also known per se, extending all along the needle bed.
  • Each needle 3 is pushed into the working position by a key 7 of special shape, capable of occupying several levels in the needle bed and associated with an auxiliary key not shown forming part of an individual selection device described in detail in the patent CH 632 024, in which the key 7 is designated by the reference 8.
  • the bottom of the groove 2 has a first part 8, at the hook 4 of the needle, corresponding to the usual bottom of such a groove, this first part 8 being followed by a first shallow depression 9 of uniform depth with the exception of the part which connects it to part 8, this first depression 9 being followed by a second depression 10, deeper at the heel 5 of the needle.
  • This second depression 10 can be machined in each groove 2 or alternatively be made up of a single countersink extending over the entire length of the needle bed.
  • the needle 3 for its part, has a clearance 14 over a part of its length, consisting of a narrowing of its height, so that the lower edge of the needle, constituting said clearance, is oblique relative to the two sides 15 and 16 rectilinear and parallel with a conventional needle.
  • This clearance 14 extends in the direction of the heel 5 to an oblique bent part 17 connecting the body of the needle 3 to the heel 5.
  • the lower edge of this part 17 is substantially parallel to the ramp 18 which connects the depressions 9 and 10 from the groove.
  • the lower part 19 of the connection between the heel 5 and the body of the needle constitutes a sliding shoe.
  • the non-rectilinear connection between the heel and the body of the needle provides a certain elasticity, sought after, damping the transmission to the hook 4 of shocks on the heel 5.
  • the heel 5 has, on the side of the key 7, at the level of the body of the needle, an oblique ramp 20 lying below a portion 21 perpendicular to the plane of the needle bed.
  • the end of the key 7 also has a ramp 22 parallel to the ramp 20 of the heel 5 when the key 7 is in the selected position, that is to say in the high position.
  • the key 7 ends with a front face 23 perpendicular to the plane of the needle bed.
  • the key 7 also has a heel 24 and is retained in the high position by a second steel wire 25 extending over the entire length of the needle bed, this wire further retaining the heel 24 of the key in the withdrawn position. or preselection.
  • the heels 5 of all the needles are first embedded in the needle bed 1 by a special cam 26 secured to the cam carrier not shown.
  • the keys 7 are, at rest, in position 24 '.
  • the corresponding key 7 is released, as described in patent CH 632 024, and comes into position 24 ′, while the keys of the unselected needles are retained in position 24.
  • the selected key is then driven by a cam of the cam holder shown diagrammatically at 27, and its end abuts against the heel 5 of the corresponding needle by its front face 23, as shown in 24 ''.
  • the needle 3 is pushed forward and its bent part 17 abuts against the ramp 18 on which the shoe 19 rises to pass over the part 9 of the groove as shown in Figure 2.
  • the ramp 22 of the key 7 slides on the ramp 20 of the heel 5, thereby helping to lift the heel while continuing to push the needle.
  • the heel 5 protrudes from the needle bed and can be gripped by the working cams of the cam holder.
  • the felling of the needles is represented in FIG. 3.
  • the heels 5 of the needles are driven behind by a felling cam 28.
  • the heels 5 arrive opposite the depression 10, it is advisable to prevent these heels from fall prematurely into this release.
  • the heels 5 are supported until the end of their felling stroke by the keys 7, the heels of which are guided by a cam 29 of the cam holder.
  • the two cams 28 and 29 somehow form a channel of uniform width, in which the needle-key assembly is guided as if it were a single piece.
  • the keys 7 then continue on their own to the right by freeing the heels 5, to return to their initial rest position 24 '(FIG. 1).
  • the embodiment described above by way of example is of course susceptible of numerous variants.
  • the clearance 14 of the needle is theoretically optional.
  • the bent part, 17-19 of the needle could have a regular curvature or not instead of a straight part 17.
  • the depression 10 of the groove could be obtained by a complete interruption of the needle bed.
  • the heels could be held magnetically in their position embedded by magnets, for example by a strip of plastic material containing ferrite particles.

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  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Knitting Machines (AREA)

Abstract

Les rainures (2) de la fonture (1) présentent une première dépression (9) s'étendant en face de la plus grande partie de l'aiguille (3) et une seconde dépression (10), plus profonde, dans laquelle une partie coudée (19) du talon peut s'engager lorsque ce talon est escamoté par une came (26), de manière à mettre le talon hors de portée des cames, notamment de la came d'abattage. Lorsque l'aiguille est poussée par la clavette qui lui est associée (7), c'est-à-dire sélectionnée en position de travail, la partie coudée (19) est soulevée par une rampe (18) pour venir sur la première dépression (9).The grooves (2) of the needle bed (1) have a first depression (9) extending opposite the largest part of the needle (3) and a second depression (10), deeper, in which a part bent (19) of the heel can engage when this heel is retracted by a cam (26), so as to put the heel out of reach of the cams, in particular of the felling cam. When the needle is pushed by the key associated with it (7), that is to say selected in the working position, the bent part (19) is lifted by a ramp (18) to come to the first depression (9).

Description

La présente invention a pour objet une machine à tricoter comprenant au moins une fonture dans les rainures de laquelle sont logées des aiguilles coulissantes présentant au moins un talon susceptible d'occuper deux niveaux relativement au plan de la fonture, l'un dans lequel le talon peut être entrainé par les cames du porte-cames et l'autre dans lequel le talon est hors de la trajectoire de ces cames, des moyens pour agir sur lesdits talons pour les mettre dans les positions correspondant à ces deux niveaux, l'un de ces moyens étant constitué par une came repoussant les talons dans leur niveau bas, et des clavettes associées à chaque aiguille pour les amener en position de travail, dans laquelle elles peuvent être entraînées par les cames de travail.The present invention relates to a knitting machine comprising at least one needle bed in the grooves of which are housed sliding needles having at least one heel capable of occupying two levels relative to the plane of the needle bed, one in which the heel can be driven by the cams of the cam holder and the other in which the heel is out of the path of these cams, means for acting on said heels to put them in the positions corresponding to these two levels, one of these means being constituted by a cam pushing the heels back into their low level, and keys associated with each needle to bring them into the working position, in which they can be driven by the working cams.

Lors du tricotage de motifs Jacquard, notamment lors du "fléchage", il arrive que des aiguilles hors travail portent des mailles en attente. L'abattage de ces aiguilles est non seulement inutile, mais il risque d'entrainer une cassure de ces mailles à chaque passage du chariot. L'augmentation de la vitesse de travail des machines à tricoter augmente le risque de cassure en raison de la plus grande accélération imposée aux aiguilles lors de l'abattage, les efforts augmentant proportionnellement au carré de la vitesse. En raison de l'augmentation de la vitesse de travail, les aiguilles sont également soumises à des efforts d'accélération et des efforts de freinage beaucoup plus élevés. Les vibrations provoquées et l'usure des cames et des aiguilles augmentent également proportionnellement. Il convient donc, dans la mesure du possible, d'éviter des chocs inutiles. C'est particulièrement le cas lors de l'abattage des aiguilles. Pour ces raisons on cherche à éviter l'abattage des aiguilles qui sont momentanément hors travail en noyant les talons de ces aiguilles dans la fonture de telle sorte qu'ils ne rencontrent pas les cames d'abattage.When knitting Jacquard patterns, especially when "arrowing", it happens that needles out of work carry waiting stitches. The felling of these needles is not only unnecessary, but it may cause the mesh to break on each pass. of the carriage. Increasing the working speed of knitting machines increases the risk of breakage due to the greater acceleration imposed on the needles during felling, the efforts increasing in proportion to the square of the speed. Due to the increased working speed, the needles are also subjected to much higher acceleration and braking forces. The vibrations caused and the wear of the cams and needles also increase proportionally. It is therefore advisable, as far as possible, to avoid unnecessary shocks. This is particularly the case when the needles are slaughtered. For these reasons we seek to avoid the felling of needles which are temporarily out of work by drowning the heels of these needles in the needle bed so that they do not meet the felling cams.

Selon une solution décrite dans la demande de brevet DE-A-2755471. les aiguilles sont munies d'un prolongement élastique en forme d'épingle à cheveux, venu d'une pièce ou non avec l'aiguille proprement dite. L'extrémité de cette épingle porte le talon de l'aiguille. Au moyen d'une came on peut fléchir l'épingle et en tirant celle-ci en arrière une portée de l'épingle vient s'accrocher derrière une barre spéciale de manière à maintenir le talon en position noyée. Le coude de l'épingle élastique constitue toutefois un point faible, même si cette épingle ou l'aiguille entière, dans le cas où l'aiguille et l'épingle sont venues d'une seule pièce, est réalisé en acier de haute résistance. De toute manière une telle aiguille est de fabrication coûteuse.According to a solution described in patent application DE-A-2755471. the needles are provided with an elastic extension in the form of a hairpin, which may or may not come in one piece with the needle itself. The end of this pin carries the heel of the needle. By means of a cam, the pin can be bent and by pulling it back a span of the pin is hooked behind a special bar so as to keep the heel in the submerged position. The bend of the elastic pin however constitutes a weak point, even if this pin or the entire needle, in the case where the needle and the pin came in one piece, is made of high strength steel. In any case, such a needle is expensive to manufacture.

On a également proposé de relier l'aiguille à sa clavette ou platine par une articulation. Une telle articulation doit être exécutée avec une grande précision afin d'éviter un jeu trop grand entre l'aiguille et la clavette, un jeu trop grand étant susceptible de provoquer des irrégularités dans la grandeur des mailles et par conséquent dans le tricot. Compte tenu de la faible dimension de l'aiguille et de la clavette, une telle articulation constitue en outre un point faible, sans compter l'usure entrainant une augmentation du jeu.It has also been proposed to connect the needle to its key or plate by a joint. Such a joint must be executed with great precision in order to avoid too much play between the needle and the key, too much play being liable to cause irregularities in the size of the stitches and consequently in the knitting. Given the small size of the needle and the key, such an articulation also constitutes a weak point, not to mention the wear causing an increase in the clearance.

La présente invention a pour but de réaliser un escamotage des talons des aiguilles hors travail par des moyens plus robustes et plus fiables, n'utilisant ni élasticité, ni articulation délicate.The present invention aims to achieve a retraction of the heels of the needles out of work by more robust and reliable means, using neither elasticity, nor delicate articulation.

Ce but est atteint par les moyens définis par la caractéristique de la revendication 1.This object is achieved by the means defined by the characteristic of claim 1.

Ces moyens ne comprennent aucun élément élastique, ni articulation délicate. La modification de la forme de l'aiguille au niveau de son talon est facile à réaliser et ne réduit pas la résistance de l'aiguille, mais contribue au contraire à assurer une certaine élasticité nécessaire dans le sens longitudinal pour l'amortissement de la transmission du choc sur le talon en direction du crochet de l'aiguille. La longueur de l'aiguille n'est pas augmentée. Aucune pièce supplémentaire n'est nécessaire pour maintenir le talon en position noyée dans la fonture.These means do not include any elastic element, nor delicate articulation. The modification of the shape of the needle at the level of its heel is easy to carry out and does not reduce the resistance of the needle, but on the contrary contributes to ensuring a certain elasticity necessary in the longitudinal direction for the damping of the transmission shock on the heel towards the hook of the needle. The length of the needle is not increased. No additional parts are necessary to keep the heel in the sunken position in the needle bed.

La machine à tricoter concernée peut être aussi bien une machine rectiligne à une fonture qu'à deux fontures ou une machine circulaire.The knitting machine concerned can be either a straight machine with one needle bed or two needle beds or a circular machine.

Le dessin annexé représente, à titre d'exemple, une forme d'exécution de l'invention.The accompanying drawing shows, by way of example, an embodiment of the invention.

  • La figure 1 est une vue en coupe verticale à travers une fonture, représentant le talon d'une aiguille en position noyée.Figure 1 is a vertical sectional view through a needle bed, representing the heel of a needle in the submerged position.
  • La figure 2 est une coupe identique montrant l'aiguille amenée en position de travail par sa clavette.Figure 2 is an identical section showing the needle brought into the working position by its key.
  • La figure 3 est une coupe identique représentant l'abattage de l'aiguille par une came d'abattage.Figure 3 is an identical section showing the felling of the needle by a felling cam.

Par mesure de simplicité, la fonture 1 est représentée en position horizontale, mais il est évident qu'elle est utilisée en position inclinée. On reconnait une rainure 2 dans laquelle est logée une aiguille 3 munie d'un crochet 4 bien connu en soi et d'un talon 5 à son extrémité. Lors de son déplacement dans la fonture, l'aiguille 3 est guidée entre le fond de la rainure et une barre 6, également connue en soi, s'étendant tout le long de la fonture. Chaque aiguille 3 est poussée en position de travail par une clavette 7 de forme spéciale, susceptible d'occuper plusieurs niveaux dans la fonture et associée à une clavette auxiliaire non représentée faisant partie d'un dispositif de sélection individuel décrit en détail dans le brevet CH 632 024, dans lequel la clavette 7 est désignée par la référence 8.For simplicity, the needle bed 1 is shown in a horizontal position, but it is obvious that it is used in the inclined position. We recognize a groove 2 in which is housed a needle 3 provided with a hook 4 well known per se and a heel 5 at its end. During its movement in the needle bed, the needle 3 is guided between the bottom of the groove and a bar 6, also known per se, extending all along the needle bed. Each needle 3 is pushed into the working position by a key 7 of special shape, capable of occupying several levels in the needle bed and associated with an auxiliary key not shown forming part of an individual selection device described in detail in the patent CH 632 024, in which the key 7 is designated by the reference 8.

Le fond de la rainure 2 présente une première partie 8, au niveau du crochet 4 de l'aiguille, correspondant au fond habituel d'une telle rainure, cette première partie 8 étant suivie d'une première dépression peu profonde 9 de profondeur uniforme à l'exception de la partie qui la relie à la partie 8, cette première dépression 9 étant suivie d'une seconde dépression 10, plus profonde au niveau du talon 5 de l'aiguille. Cette seconde dépression 10 peut être usinée dans chaque rainure 2 ou bien être au contraire constituée d'une fraisure unique s'étendant sur toute la longueur de la fonture. En arrière de la dépression 10, on retrouve une partie 11 de même niveau que la partie 8 et servant au guidage de la clavette 7 qui est retenue dans la rainure par un fil d'acier 12. En arrière de la partie 11, on trouve un large dégagement permettant à la clavette 7 de basculer à l'intérieur de la rainure lorsqu'elle est entrainée par sa clavette auxiliaire, commme décrit dans le brevet CH 632 024.The bottom of the groove 2 has a first part 8, at the hook 4 of the needle, corresponding to the usual bottom of such a groove, this first part 8 being followed by a first shallow depression 9 of uniform depth with the exception of the part which connects it to part 8, this first depression 9 being followed by a second depression 10, deeper at the heel 5 of the needle. This second depression 10 can be machined in each groove 2 or alternatively be made up of a single countersink extending over the entire length of the needle bed. Behind the depression 10, there is a part 11 of the same level as the part 8 and serving to guide the key 7 which is retained in the groove by a steel wire 12. At the rear of the part 11, there is a wide clearance allowing the key 7 to tilt inside the groove when it is driven by its auxiliary key, as described in patent CH 632 024.

L'aiguille 3, quant à elle, présente un dégagement 14 sur une partie de sa longueur, constitué par un rétrécissement de sa hauteur, de telle sorte que le bord inférieur de l'aiguille, constituant ledit dégagement, est oblique relativement aux deux côtés 15 et 16 rectilignes et parallèles d'une aiguille conventionnelle. Ce dégagement 14 s'étend en direction du talon 5 jusqu'à une partie coudée oblique 17 reliant le corps de l'aiguille 3 au talon 5. Le bord inférieur de cette partie 17 est sensiblement parallèle à la rampe 18 qui relie les dépressions 9 et 10 de la rainure. La partie inférieure 19 de la liaison entre le talon 5 et le corps de l'aiguille constitue un sabot de glissement. On constate que la liaison non rectiligne entre le talon et le corps de l'aiguille assure une certaine élasticité, recherchée, amortissant la transmission vers le crochet 4 des chocs sur le talon 5. Le talon 5 présente, du côté de la clavette 7, au niveau du corps de l'aiguille, une rampe oblique 20 se situant en-dessous d'une partie 21 perpendiculaire au plan de la fonture. L'extrémité de la clavette 7 présente également une rampe 22 parallèle à la rampe 20 du talon 5 lorsque la clavette 7 est en position sélectionnée, c'est-à-dire en position haute. La clavette 7 se termine par une face frontale 23 perpendiculaire au plan de la fonture. La clavette 7 présente en outre un talon 24 et elle est retenue en position haute par un second fil d'acier 25 s'étendant sur toute la longueur de la fonture , ce fil retenant en outre le talon 24 de la clavette en position de retrait ou de présélection.The needle 3, for its part, has a clearance 14 over a part of its length, consisting of a narrowing of its height, so that the lower edge of the needle, constituting said clearance, is oblique relative to the two sides 15 and 16 rectilinear and parallel with a conventional needle. This clearance 14 extends in the direction of the heel 5 to an oblique bent part 17 connecting the body of the needle 3 to the heel 5. The lower edge of this part 17 is substantially parallel to the ramp 18 which connects the depressions 9 and 10 from the groove. The lower part 19 of the connection between the heel 5 and the body of the needle constitutes a sliding shoe. It is noted that the non-rectilinear connection between the heel and the body of the needle provides a certain elasticity, sought after, damping the transmission to the hook 4 of shocks on the heel 5. The heel 5 has, on the side of the key 7, at the level of the body of the needle, an oblique ramp 20 lying below a portion 21 perpendicular to the plane of the needle bed. The end of the key 7 also has a ramp 22 parallel to the ramp 20 of the heel 5 when the key 7 is in the selected position, that is to say in the high position. The key 7 ends with a front face 23 perpendicular to the plane of the needle bed. The key 7 also has a heel 24 and is retained in the high position by a second steel wire 25 extending over the entire length of the needle bed, this wire further retaining the heel 24 of the key in the withdrawn position. or preselection.

Le fonctionnement du dispositif sera maintenant décrit en relation avec les figures 1 à 3.The operation of the device will now be described in relation to FIGS. 1 to 3.

Comme représenté à la figure 1, les talons 5 de toutes les aiguilles sont tout d'abord noyés dans la fonture 1 par une came spéciale 26 solidaire du chariot porte-cames non représenté. Les clavettes 7 sont, au repos, dans la position 24'.As shown in Figure 1, the heels 5 of all the needles are first embedded in the needle bed 1 by a special cam 26 secured to the cam carrier not shown. The keys 7 are, at rest, in position 24 '.

Si une aiguille est sélectionnée par le dispositif de sélection, la clavette 7 correspondante est relâchée, comme décrit dans le brevet CH 632 024, et vient dans la position 24', tandis que les clavettes des aiguilles non sélectionnées sont retenues dans la position 24. La clavette sélectionnée est alors entraînée par une came du porte-cames représentée schématiquement en 27, et son extrémité vient buter contre le talon 5 de l'aiguille correspondante par sa face frontale 23, comme représentée en 24''. L'aiguille 3 est poussée en avant et sa partie coudée 17 vient buter contre la rampe 18 sur laquelle le sabot 19 s'élève pour passer sur la partie 9 de la rainure comme représentée à la figure 2. En cours d'ascension de l'aiguille, la rampe 22 de la clavette 7 glisse sour la rampe 20 du talon 5, contribuant ainsi à soulever le talon tout en continuant à pousser l'aiguille. Une fois que le sabot 19 de l'aiguille est sur la partie 9 de la rainure, le talon 5 fait saillie hors de la fonture et peut être saisi par les cames de travail du porte-cames.If a needle is selected by the selection device, the corresponding key 7 is released, as described in patent CH 632 024, and comes into position 24 ′, while the keys of the unselected needles are retained in position 24. The selected key is then driven by a cam of the cam holder shown diagrammatically at 27, and its end abuts against the heel 5 of the corresponding needle by its front face 23, as shown in 24 ''. The needle 3 is pushed forward and its bent part 17 abuts against the ramp 18 on which the shoe 19 rises to pass over the part 9 of the groove as shown in Figure 2. During the ascent of the 'needle, the ramp 22 of the key 7 slides on the ramp 20 of the heel 5, thereby helping to lift the heel while continuing to push the needle. Once the shoe 19 of the needle is on the part 9 of the groove, the heel 5 protrudes from the needle bed and can be gripped by the working cams of the cam holder.

L'abattage des aiguilles est représenté à la figure 3. Les talons 5 des aiguilles sont entrainés en arrière par une came d'abattage 28. Lorsque les talons 5 arrivent en face de la dépression 10, il convient d'éviter que ces talons ne tombent prématurément dans ce dégagement. A cet effet, les talons 5 sont soutenus jusqu'au bout de leur course d'abattage par les clavettes 7 dont les talons sont guidés par une came 29 du porte-cames. Les deux cames 28 et 29 forment en quelle que sorte un canal de largeur uniforme, dans lequel l'ensemble aiguille-clavette est guidé comme s'il s'agissait d'une seule pièce. Les clavettes 7 poursuivent ensuite seules leur course vers la droite en libérant les talons 5, pour revenir dans leur position initiale de repos 24' (figure 1).The felling of the needles is represented in FIG. 3. The heels 5 of the needles are driven behind by a felling cam 28. When the heels 5 arrive opposite the depression 10, it is advisable to prevent these heels from fall prematurely into this release. To this end, the heels 5 are supported until the end of their felling stroke by the keys 7, the heels of which are guided by a cam 29 of the cam holder. The two cams 28 and 29 somehow form a channel of uniform width, in which the needle-key assembly is guided as if it were a single piece. The keys 7 then continue on their own to the right by freeing the heels 5, to return to their initial rest position 24 '(FIG. 1).

La forme d'exécution décrite ci-dessus à titre d'exemple est bien entendu susceptible de nombreuses variantes. En particulier, le dégagement 14 de l'aiguille est théoriquement facultatif. Il est toutefois préférable de manière à utiliser toute la hauteur du talon lorsqu'on passe de la position basse à la position haute. La partie coudée, 17-19 de l'aiguille pourrait présenter une courbure régulière ou non au lieu d'une partie rectiligne 17. La dépression 10 de la rainure pourrait être obtenue par une interruption complète de la fonture. On pourrait loger une réglette dans cette interruption pour former un fond comparable au fond 10. Les talons pourraient être retenus magnétiquement dans leur position noyée par des aimants, par exemple par une bande de matière plastique contenant des particules de ferrite.The embodiment described above by way of example is of course susceptible of numerous variants. In particular, the clearance 14 of the needle is theoretically optional. However, it is preferable to use the entire heel height when going from the low position to the high position. The bent part, 17-19 of the needle could have a regular curvature or not instead of a straight part 17. The depression 10 of the groove could be obtained by a complete interruption of the needle bed. One could accommodate a strip in this interruption to form a bottom comparable to the bottom 10. The heels could be held magnetically in their position embedded by magnets, for example by a strip of plastic material containing ferrite particles.

Claims (6)

1. Machine à tricoter comprenant au moins une fonture (1) dans les rainures (2) de laquelle sont logées des aiguilles coulissantes (3) présentant au moins un talon (5) susceptible d'occuper deux niveaux relativement au plan de la fonture, l'un dans lequel le talon peut être entraîné par les cames du porte-cames et l'autre dans lequel le talon est hors de la trajectoire de ces cames, des moyens pour agir sur lesdits talons pour les mettre dans les positions correspondant respectivement à ces deux niveaux, l'un de ces moyens étant constitué par une came(26) repoussant les talons dans leur niveau bas, et des clavettes (7) associées à chaque aiguille pour les amener en position de travail, dans lesquelles elles peuvent être entrainées par les cames de travail, caractérisée par le fait que les rainures (2) de la fonture présentent une première dépression (9,) s'étendant en face de la plus grande partie de la longueur d'une aiguille en position hors travail, suivie d'une seconde dépression (10), plus profonde, située en face du talon (5) de l'aiguille en position hors travail et reliée par une rampe (18) à la première dépression, et par le fait que les aiguilles (3) présentent, en-dessous du talon et du corps de l'aiguille, une partie coudée (17, 19) reliant le talon au corps de l'aiguille, le tout de telle sorte que lorsque le talon d'une aiguille hors travail est repoussé dans son niveau bas, ladite partie coudée de l'aiguille vient se loger dans ladite seconde dépression et que lorsque l'aiguille est poussée en avant par la clavette qui lui est associée, cette partie coudée vient buter contre ladite rampe (18) de la fonture, ce qui a pour effet de soulever le talon à son niveau haut.1. knitting machine comprising at least one needle bed (1) in the grooves (2) of which are housed sliding needles (3) having at least one heel (5) capable of occupying two levels relative to the plane of the needle bed, one in which the heel can be driven by the cams of the cam holder and the other in which the heel is out of the path of these cams, means for acting on said heels to put them in the positions corresponding respectively to these two levels, one of these means being constituted by a cam (26) pushing the heels back into their low level, and keys (7) associated with each needle to bring them into the working position, in which they can be driven by working cams, characterized in that the grooves (2) of the needle bed have a first depression (9,) extending opposite the greater part of the length of a needle in the non-working position, followed a second depression ( 10), deeper, located opposite the heel (5) of the needle in the out-of-work position and connected by a ramp (18) to the first depression, and by the fact that the needles (3) have, below of the heel and of the body of the needle, a bent part (17, 19) connecting the heel to the body of the needle, the whole so that when the heel of a needle out of work is pushed back into its low level, said bent part of the needle is housed in said second depression and that when the needle is pushed forward by the key associated with it, this bent part abuts against said ramp (18) of the needle bed, which has to lift the heel at its high level. 2. Machine à tricoter selon la revendication 1, caractérisée par le fait que la partie inférieure du talon de l'aiguille située du côté de la clavette présente une rampe oblique (20) destinée à coopérer avec une rampe correspondante (22) prévue à l'extrémité de la clavette pour soutenir le talon en position haute lors de l'abattage de l'aiguille.2. Knitting machine according to claim 1, characterized in that the lower part of the heel of the needle located on the side of the key has an oblique ramp (20) intended to cooperate with a corresponding ramp (22) provided in the end of the wedge to support the heel in the high position when the needle is fired. 3. Machine à tricoter selon la revendication 2, caractérisée par le fait que le porte-cames comprend une came (29) guidant et retenant la clavette (7) par son talon lors de l'abattage de l'aiguille, de telle sorte que l'extrémité de la clavette reste en appui, par sa rampe (22), avec la rampe oblique du talon.3. Knitting machine according to claim 2, characterized in that the cam holder comprises a cam (29) guiding and retaining the key (7) by its heel during the felling of the needle, so that the end of the key remains in support, by its ramp (22), with the oblique ramp of the heel. 4. Machine à tricoter selon la revendication 3, caractérisée par le fait que la partie du talon de l'aiguille située du côté de la clavette présente une partie (21) perpendiculaire à la fonture, au-dessus de ladite rampe oblique (20), la clavette venant buter par son extrémité (23) contre cette partie perpendiculaire lorsque le talon de l'aiguille est à son niveau bas.4. knitting machine according to claim 3, characterized in that the part of the heel of the needle located on the side of the key has a part (21) perpendicular to the needle bed, above said oblique ramp (20) , the key abutting at its end (23) against this perpendicular part when the heel of the needle is at its low level. 5. Machine à tricoter selon l'une des revendications 1 à 4, caractérisée par le fait que les aiguilles présentent un dégagement (14) sur leur côté inférieur , sur une partie de leur longueur en partant de ladite partie coudée.5. Knitting machine according to one of claims 1 to 4, characterized in that the needles have a clearance (14) on their lower side, over part of their length from said bent part. 6. Machine à tricoter selon l'une des revendications 1 à 4, caractérisée par le fait que des moyens de retenue magnétiques sont prévus au fond desdites secondes dépressions (10).6. Knitting machine according to one of claims 1 to 4, characterized in that magnetic retaining means are provided at the bottom of said second depressions (10).
EP85200092A 1985-01-29 1985-01-29 Knitting machine Expired EP0189602B1 (en)

Priority Applications (6)

Application Number Priority Date Filing Date Title
EP85200092A EP0189602B1 (en) 1985-01-29 1985-01-29 Knitting machine
DE8585200092T DE3569269D1 (en) 1985-01-29 1985-01-29 Knitting machine
US06/820,699 US4621506A (en) 1985-01-29 1986-01-21 Knitting machine
DD86286515A DD241621A5 (en) 1985-01-29 1986-01-27 KNITTING MACHINE
JP61014909A JPH0730493B2 (en) 1985-01-29 1986-01-28 knitting machine
ES551349A ES8705540A1 (en) 1985-01-29 1986-01-28 Knitting machine.

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP85200092A EP0189602B1 (en) 1985-01-29 1985-01-29 Knitting machine

Publications (2)

Publication Number Publication Date
EP0189602A1 true EP0189602A1 (en) 1986-08-06
EP0189602B1 EP0189602B1 (en) 1989-04-05

Family

ID=8193989

Family Applications (1)

Application Number Title Priority Date Filing Date
EP85200092A Expired EP0189602B1 (en) 1985-01-29 1985-01-29 Knitting machine

Country Status (6)

Country Link
US (1) US4621506A (en)
EP (1) EP0189602B1 (en)
JP (1) JPH0730493B2 (en)
DD (1) DD241621A5 (en)
DE (1) DE3569269D1 (en)
ES (1) ES8705540A1 (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0267883A2 (en) * 1986-11-11 1988-05-18 E.M.M. S.r.l. Perfected automatic flat knitting machine
EP0290008A2 (en) * 1987-05-07 1988-11-09 UNIVERSAL Maschinenfabrik Dr. Rudolf Schieber GmbH & Co. KG Flat-bed knitting machine
EP0407872A2 (en) * 1989-07-10 1991-01-16 MEC-MOR S.r.l. Knitting machine with needle control device for the knitting of pattern stitches
DE102010017949A1 (en) 2010-04-22 2011-10-27 H. Stoll Gmbh & Co. Kg Functional element i.e. knitting needle, for knitting machine, has drive base movable in two work heights and arranged at element such that drive base comprises same orientation to needle bed in work heights

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1616982B1 (en) * 2004-07-14 2008-07-23 Groz-Beckert KG System for stitch forming and an element therefor
DE102010017947B4 (en) * 2010-04-22 2012-04-19 H. Stoll Gmbh & Co. Kg Board for a functional element of a knitting machine
DE102010017952B4 (en) 2010-04-22 2012-04-19 H. Stoll Gmbh & Co. Kg Knitting needle for knitting machines
DE102010017951B4 (en) * 2010-04-22 2011-12-01 H. Stoll Gmbh & Co. Kg circuit board
DE102010020041B4 (en) * 2010-05-11 2013-08-29 H. Stoll Gmbh & Co. Kg Knitting needle for knitting machines and flat knitting machine
DE102010056425B3 (en) * 2010-12-28 2012-04-05 H. Stoll Gmbh & Co. Kg Knitting machine has needle bed and needle channels, in which insert parts, particularly knitting needles are longitudinally displaceably mounted
DE102010056426B4 (en) 2010-12-28 2014-05-15 H. Stoll Gmbh & Co. Kg knitting machine

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH489651A (en) * 1968-02-23 1970-04-30 Dubied & Cie Sa E Selection device for Jacquard circular knitting machine
FR2091293A6 (en) * 1970-05-29 1972-01-14 Bonneterie Sa Et Circular knitting machine - having electromagnetic needle selection
DE3143872A1 (en) * 1980-11-12 1982-09-09 Elitex, koncern textilního strojírenství, Liberec Circular knitting machine

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1962787C3 (en) * 1969-12-15 1973-10-18 H. Stoll & Co, 7410 Reutlingen Knitting machine, in particular flat knitting machine
JPS5413549B2 (en) * 1973-05-18 1979-05-31
CH569118A5 (en) * 1973-07-13 1975-11-14 Dubied & Cie Sa E
JPS5853099B2 (en) * 1977-08-27 1983-11-26 株式会社平工製作所 Electromagnetic needle selection device for flat knitting machines
CH632024A5 (en) 1978-09-12 1982-09-15 Steiger Atelier De Constructio Single needle selection device for flat knitting machine.
DE3237732A1 (en) * 1982-10-12 1984-04-12 H. Stoll Gmbh & Co, 7410 Reutlingen FLAT KNITTING MACHINE WITH NEEDLE SELECTION DEVICE
DE3406870C2 (en) * 1984-02-25 1986-06-12 H. Stoll Gmbh & Co, 7410 Reutlingen Flat knitting machine with electromechanical selection

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH489651A (en) * 1968-02-23 1970-04-30 Dubied & Cie Sa E Selection device for Jacquard circular knitting machine
FR2091293A6 (en) * 1970-05-29 1972-01-14 Bonneterie Sa Et Circular knitting machine - having electromagnetic needle selection
DE3143872A1 (en) * 1980-11-12 1982-09-09 Elitex, koncern textilního strojírenství, Liberec Circular knitting machine

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0267883A2 (en) * 1986-11-11 1988-05-18 E.M.M. S.r.l. Perfected automatic flat knitting machine
EP0267883A3 (en) * 1986-11-11 1990-12-12 E.M.M. Emiliana Macchine Maglieria S.R.L. Perfected automatic flat knitting machine
EP0290008A2 (en) * 1987-05-07 1988-11-09 UNIVERSAL Maschinenfabrik Dr. Rudolf Schieber GmbH & Co. KG Flat-bed knitting machine
EP0290008A3 (en) * 1987-05-07 1991-11-06 UNIVERSAL Maschinenfabrik Dr. Rudolf Schieber GmbH & Co. KG Flat-bed knitting machine
EP0407872A2 (en) * 1989-07-10 1991-01-16 MEC-MOR S.r.l. Knitting machine with needle control device for the knitting of pattern stitches
EP0407872A3 (en) * 1989-07-10 1992-03-04 Mec-Mor S.R.L. Knitting machine with needle control device for the knitting of pattern stitches
DE102010017949A1 (en) 2010-04-22 2011-10-27 H. Stoll Gmbh & Co. Kg Functional element i.e. knitting needle, for knitting machine, has drive base movable in two work heights and arranged at element such that drive base comprises same orientation to needle bed in work heights

Also Published As

Publication number Publication date
DE3569269D1 (en) 1989-05-11
ES8705540A1 (en) 1987-05-01
JPH0730493B2 (en) 1995-04-05
DD241621A5 (en) 1986-12-17
ES551349A0 (en) 1987-05-01
JPS61207648A (en) 1986-09-16
US4621506A (en) 1986-11-11
EP0189602B1 (en) 1989-04-05

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