EP1295976A1 - Flat knitting machine for making tubular knitting - Google Patents

Flat knitting machine for making tubular knitting Download PDF

Info

Publication number
EP1295976A1
EP1295976A1 EP01810908A EP01810908A EP1295976A1 EP 1295976 A1 EP1295976 A1 EP 1295976A1 EP 01810908 A EP01810908 A EP 01810908A EP 01810908 A EP01810908 A EP 01810908A EP 1295976 A1 EP1295976 A1 EP 1295976A1
Authority
EP
European Patent Office
Prior art keywords
knitting
needles
cams
guide
guide grooves
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.)
Withdrawn
Application number
EP01810908A
Other languages
German (de)
French (fr)
Inventor
Anton Percy Spielmann
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Priority to EP01810908A priority Critical patent/EP1295976A1/en
Publication of EP1295976A1 publication Critical patent/EP1295976A1/en
Withdrawn legal-status Critical Current

Links

Images

Classifications

    • 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
    • D04B15/94—Driving-gear not otherwise provided for
    • D04B15/96—Driving-gear not otherwise provided for in flat-bed knitting machines
    • 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
    • D04B15/32—Cam systems or assemblies for operating knitting instruments
    • D04B15/36—Cam systems or assemblies for operating knitting instruments for flat-bed knitting machines
    • D04B15/362—Cam systems or assemblies for operating knitting instruments for flat-bed knitting machines with two needle beds in V-formation
    • D—TEXTILES; PAPER
    • D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
    • D04B—KNITTING
    • D04B7/00—Flat-bed knitting machines with independently-movable needles
    • D04B7/30—Flat-bed knitting machines with independently-movable needles specially adapted for knitting goods of particular configuration
    • D04B7/32—Flat-bed knitting machines with independently-movable needles specially adapted for knitting goods of particular configuration tubular goods

Definitions

  • the present invention relates to a knitting loom straight to form a seamless tubular knit comprising two needle beds provided with guide grooves knitting needles defining needle trajectories that the needles of a needle bed do not not cross those of the other bed, knitting cams to move said needles along said grooves, drive means so that the displacement said knitting cams engaged with said needles produce in one direction only on a needle and in the direction opposite on the other needle bed and means for passing the knitting yarn from the needles of a needle to those of the other needle bed.
  • the object of the present invention is to increase the speed knitting compared to straight looms, too well the traditional trades than that described in EP 1 127 970 mentioned above.
  • the subject of the present invention is a straight knitting loom to form a tubular knit seamless of the aforementioned type corresponding to claim 1.
  • the knitting loom according to the invention no longer comprises of the carriage and the knitting cams do not pass more than one one to another.
  • the moving masses are therefore very significantly reduced so that the speed can be significantly increased compared to the solution above, allowing to approach the speeds of the trades classic straight knitting yarns.
  • the proposed solution is also simple to make and can also offer mesh adjustment possibilities equivalent to those classic trades.
  • the knitting loom according to the present invention is a loom of the type described in EP 1 127 970 mentioned above which may be referred to, the present invention relating only to the actuation of the needle knitting from this craft.
  • the knitting loom illustrated in Figures 1-3 has two needle beds 1, 2, in which a plurality of parallel guide grooves 1a, respectively 2a are formed. Knitting needles 3 are slidably mounted in these guide grooves 1a, 2a. These needle beds 1, 2 form an angle between them, chosen so that their respective knitting needles 3 do not intersect not during their normal knitting runs.
  • the knitting loom comprises a device comprising two plates 4, 5 held parallel to each other by spacers 6 fixed by screws 7.
  • the plates 4 arranged adjacent in the beds 1, 2 have two rows of openings ovals 8a, 8b.
  • the oval openings 8a 8b of the two rows are arranged longitudinally along each and are spread over the two rows so that the centers of the respective respective roundings of two openings 8a, 8b successive of the two rows lie on a line parallel to the guide grooves 1a, 2a of the needles 3 of respective beds 1, 2 ( Figure 2). Thanks to this arrangement, the rectilinear parts of these oval openings are succeed without end from one end to the other of the needle beds respective 1, 2 alternating from one row to another.
  • Each oval opening 8a, 8b receives a guide core 9a, 9b which provides a closed loop guide slot 10a, 10b of equal width between the oval opening 8a, 8b and the respective guide core 9a, 9b.
  • Each guide core 9a, 9b is positioned in the respective oval opening 8a, 8b by two positioning rods 11a, respectively 11b which are positioned and fixed in the parallel plate 5 by screws 12a, 12b.
  • a double pinion 13a, 13a ', 13b, 13b' is pivotally mounted on one of the rods of each pair of positioning rods 11a, 11b integral with the same guide core 9a, 9b. Only a pinion 13a, respectively 13b is pivotally mounted on the other rod 11a, 11b secured to the same core of guide 9a, 9b.
  • the two pinions 13a, and the two pinions 13b, integral with the same guide core 9a, respectively 9b are kinematically connected to each other by a endless belt 14a, 14b.
  • the pinions 13a ', 13b' they are engaged with an endless belt 15 driven by a motor pinion 16, connected to the drive motor (not shown) of the knitting loom by a cardan shaft 17 and a bevel gear 18 engaged with a bevel gear 19 of a drive shaft 20 of the wire guides 21.
  • these thread guides are integral with an endless belt 22 in taken with two pinions 23a, 23b, one of which 23a is coaxial and secured to a pinion 24 connected to a pinion 25 secured of the drive shaft 20 by an endless belt 26.
  • the endless belts 14a, 14b are each engaged with one or more sliding supports 27a, 27b each comprising a sort of flange 27a 1 , 27b 1 ( Figures 4, 4b). These flanges 27a 1 , 27b 1 are engaged in guide grooves 28a, respectively 28b formed in the thickness of the edges of the oval openings 8a, 8b and of the guide cores 9a, 9b, delimiting closed loop guide slots 10a, 10b.
  • the guide cores 9a, 9b are preferably made in two assembled parts 9a 1 , 9a 2 , respectively 9b 1 , 9b 2 , to allow the introduction of the flanges 27a 1 , 27b 1 of the sliding supports in the grooves guides 28a, 28b.
  • Each sliding support 27a, 27b carries a pair of knitting cams ( Figures 5, 5b), an ascending cam in two parts 29 30 and a felling cam 51, intended for engaging the pushers 31a, 31b of the needles knitting 3.
  • Each knitting cam 29, 30, 51 is integral a push rod 32, respectively 33.
  • FIG. 6 illustrates the mechanism for moving the cams 29, 30 from one to the other of their positions.
  • This mechanism has two symmetrical support arms 48 to which two levers 49 are articulated.
  • Each of these levers 49 has a slot 49a in which a pegs 50a of a slide 50 can slide.
  • Each slide 50 has a cam-shaped slot 50b, each being engaged with a pin 32a, respectively 33a of one of the push rods 32, 33.
  • the levers 49 tilt in either of their positions (see Figure 6) and put the knitting cams 29, 30 on or off.
  • each of these sliding supports 27a, 27b carries two guide rollers 42 (FIG. 4b) which press against a same edge of the slots 10a, 10b.
  • the sliding supports 27a, 27b engaged with the endless belts 14a, 14b are driven according to trajectories defined by the slots 10a, 10b. Only one right part of the oval trajectory thus described by sliding supports 27a, 27b is used to actuate the needle pushers 31a, 31b. This right part is that in which the sliding supports 27a, 27b and so the knitting cams 29, 30, 51 which they carry move in the direction of the arrows F.
  • the variant illustrated in Figure 7 does not differ from that illustrated in Figures 1-6 only by the fact that at instead of having two rows of oval loops 8a, 8b on which run the sliding supports 27a, 27b carrying knitting cams 29, 30, 51 this variant does not include that a single belt 36 making the entire length of the bed and guided by pulleys 38a, 38b.
  • training knitting cam supports 37 integral with the belt endless 36 is obtained by a drive pulley 39 connected to a pinion 40 coaxial to pinion 38b by a drive belt 41.
  • the knitting cams 37 move along the entire length of the knitting loom in the direction of arrow F on the upper end of the endless belt 36 where they selectively engage the pushers knitting needles 3 and come back in the opposite direction along the lower strand of this belt 36 where the stops can move the cams according to the needles selected, as previously described in relation to the first form of execution.
  • FIG. 7 also shows a mechanism for adjusting the length of the meshes which applies both to this variant and to the previous embodiment.
  • Each needle bed 1, 2 is secured to arms 43 each of which carries a pin 43a which projects on one of its faces to engage in a slot-shaped cam 44 formed in an adjustment member 45 slidably mounted on the frame (not shown) of the knitting loom, in the direction of the double arrow F 1 .
  • the cams 44 in the form of slots make it possible to move the needle beds 1, 2 parallel to the knitting needles 3, so that the relative position between the knitting needles 3 and the felling plates 46 ( Figure 3) and therefore the length of the mesh.
  • the knitting loom according to the invention offers all the knitting possibilities of a conventional loom with regard to concerns the selection of needles and the adjustment of lengths of meshes.
  • the mass of the sliding supports 27a, 27b has nothing comparable to that of a conventional cart, this which allows a significant increase in the knitting speed.

Abstract

The knitting machine is in two sections with cams for moving its needles (3) along guide grooves, drives to operate the cams, and a system for passing the knitting yarn from one section's needles to those in the other section and back. The knitting cams move in closed-circuit guides (10a, 10b), with the drives moving the cams along the guides so that they interact with the needles in only certain zones of the guides, lying perpendicular to needle guide grooves. The closed-circuit guides are positioned in two parallel rows running the length of the machine's sections.

Description

La présente invention se rapporte à un métier à tricoter rectiligne pour former un tricot tubulaire sans couture comportant deux fontures munies de rainures de guidage des aiguilles de tricotage définissant des trajectoires d'aiguilles selon lesquelles les aiguilles d'une fontures ne croisent pas celles de l'autre fonture, des cames de tricotage pour déplacer lesdites aiguilles le long desdites rainures, des moyens d'entraínement pour que le déplacement dites cames de tricotage en prise avec lesdites aiguilles se produise dans un seul sens sur une fonture et dans le sens opposé sur l'autre fonture et des moyens pour faire passer le fil à tricoter des aiguilles d'une fonture à celles de l'autre fonture.The present invention relates to a knitting loom straight to form a seamless tubular knit comprising two needle beds provided with guide grooves knitting needles defining needle trajectories that the needles of a needle bed do not not cross those of the other bed, knitting cams to move said needles along said grooves, drive means so that the displacement said knitting cams engaged with said needles produce in one direction only on a needle and in the direction opposite on the other needle bed and means for passing the knitting yarn from the needles of a needle to those of the other needle bed.

On a déjà proposé un tel métier à tricoter qui est décrit dans le EP 1 127 970 auquel on pourra se référer quant aux particularités qui ne concernent pas directement la présente invention. Pour obtenir un tricot tubulaire sans couture, il est nécessaire de faire tourner les chariots porteurs des cames d'actionnement des aiguilles toujours dans le même sens, faisant ainsi passer alternativement ces chariots d'une fonture à l'autre en les faisant tourner lorsqu'ils arrivent à l'extrémité de chaque fonture. En variante, les chariots tourneht dans un plan presque vertical, vis-à-vis du même lit d'aiguilles.We have already proposed such a knitting machine which is described in EP 1 127 970 to which reference may be made as for particularities which do not directly concern the present invention. To obtain a tubular knit without sewing, it is necessary to rotate the carriages wearers of the needle actuating cams always in the same direction, thus alternately passing these carts from one bed to another by rotating them when they reach the end of each needle bed. Alternatively, the turntable carts in an almost vertical plane, opposite the same bed of needles.

Le but de la présente invention est d'augmenter la vitesse de tricotage par rapport aux métiers rectilignes, aussi bien les métiers classiques que celui décrit dans le EP 1 127 970 susmentionné.The object of the present invention is to increase the speed knitting compared to straight looms, too well the traditional trades than that described in EP 1 127 970 mentioned above.

A cet effet, la présente invention a pour objet un métier à tricoter rectiligne pour former un tricot tubulaire sans couture du type susmentionné, correspondant à la revendication 1.To this end, the subject of the present invention is a straight knitting loom to form a tubular knit seamless of the aforementioned type corresponding to claim 1.

Le métier à tricoter selon l'invention ne comporte plus de chariot et les cames de tricotage ne passent plus d'une fonture à l'autre. Les masses en mouvement sont par conséquent très sensiblement réduites de sorte que la vitesse peut être notablement augmentée par rapport à la solution susmentionnée, permettant d'approcher les vitesses des métiers à tricoter rectilignes classiques. La solution proposée est également simple à réaliser et peut offrire en outre des possibilités de réglage de mailles équivalentes à celles des métiers classiques.The knitting loom according to the invention no longer comprises of the carriage and the knitting cams do not pass more than one one to another. The moving masses are therefore very significantly reduced so that the speed can be significantly increased compared to the solution above, allowing to approach the speeds of the trades classic straight knitting yarns. The proposed solution is also simple to make and can also offer mesh adjustment possibilities equivalent to those classic trades.

Le dessin annexé illustre, très schématiquement et à titre d'exemple, une forme d'exécution et une variante du métier à tricoter rectiligne objet de cette invention.

  • La figure 1 est une vue de dessus de cette forme d'exécution;
  • la figure 2 est une est une vue latérale de la figure 1;
  • la figure 3 est une vue en coupe selon III-III de la figure 2;
  • la figure 4 est une vue selon IV-IV de la figure 3;
  • les figures 4a et 4b sont deux vues partielles agrandies de la figure 4;
  • la figure 5 est une vue selon V-V de la figure 3;
  • les figures 5a et 5b sont deux vues partielles agrandies de la figure 5;
  • la figure 6 est une vue agrandie selon VI-VI de la figure 4 montrant un support coulissant portant les cames de tricotage dans deux positions différentes, avant et après la sélection des cames;
  • la figure 7 est une vue semblable à la figure 2 d'une variante de cette forme d'exécution.
    • The attached drawing illustrates, very schematically and by way of example, an embodiment and a variant of the rectilinear knitting loom object of this invention.
  • Figure 1 is a top view of this embodiment;
  • Figure 2 is a is a side view of Figure 1;
  • Figure 3 is a sectional view along III-III of Figure 2;
  • Figure 4 is a view along IV-IV of Figure 3;
  • Figures 4a and 4b are two enlarged partial views of Figure 4;
  • Figure 5 is a view along VV of Figure 3;
  • Figures 5a and 5b are two enlarged partial views of Figure 5;
  • Figure 6 is an enlarged view along VI-VI of Figure 4 showing a sliding support carrying the knitting cams in two different positions, before and after the selection of the cams;
  • Figure 7 is a view similar to Figure 2 of a variant of this embodiment.

    • Le métier à tricoter selon la présente invention est un métier du type de celui qui est décrit dans le EP 1 127 970 susmentionné auquel on pourra se référer, la présente invention ne se rapportant qu'à l'actionnement des aiguille à tricoter de ce métier.The knitting loom according to the present invention is a loom of the type described in EP 1 127 970 mentioned above which may be referred to, the present invention relating only to the actuation of the needle knitting from this craft.

    Le métier à tricoter illustré par les figures 1-3 comporte deux fontures 1, 2, dans lesquelles une pluralité de rainures de guidage parallèles 1a, respectivement 2a sont ménagées. Des aiguilles de tricotage 3 sont montées coulissantes dans ces rainures de guidage 1a, 2a. Ces fontures 1, 2 forment un certain angle entre elles, choisi de manière que leurs aiguilles à tricoter respectives 3 ne se coupent pas au cours de leurs courses normales de tricotage.The knitting loom illustrated in Figures 1-3 has two needle beds 1, 2, in which a plurality of parallel guide grooves 1a, respectively 2a are formed. Knitting needles 3 are slidably mounted in these guide grooves 1a, 2a. These needle beds 1, 2 form an angle between them, chosen so that their respective knitting needles 3 do not intersect not during their normal knitting runs.

    En lieu et place des habituels chariots porteurs des cames de tricotage, le métier à tricoter selon l'invention comporte un dispositif comprenant deux plaques 4, 5 maintenues parallèles l'une par rapport à l'autre par des entretoises 6 fixées par des vis 7. Les plaques 4 disposées adjacentes aux fontures 1, 2 présentent deux rangées d'ouvertures ovales 8a, 8b. Les ouvertures ovales 8a 8b des deux rangées sont disposées longitudinalement le long de chaque fonture et sont réparties sur les deux rangées pour que les centres des arrondis respectifs adjacents de deux ouvertures 8a, 8b successives des deux rangées se situent sur une ligne parallèle aux rainures de guidage 1a, 2a des aiguilles 3 des fontures respectives 1, 2 (figure 2). Grâce à cette disposition, les parties rectilignes de ces ouvertures ovales se succèdent sans intervalle d'un bout à l'autre des fontures respectives 1, 2 en alternant d'une rangée à l'autre.In place of the usual carts carrying knitting cams, the knitting loom according to the invention comprises a device comprising two plates 4, 5 held parallel to each other by spacers 6 fixed by screws 7. The plates 4 arranged adjacent in the beds 1, 2 have two rows of openings ovals 8a, 8b. The oval openings 8a 8b of the two rows are arranged longitudinally along each and are spread over the two rows so that the centers of the respective respective roundings of two openings 8a, 8b successive of the two rows lie on a line parallel to the guide grooves 1a, 2a of the needles 3 of respective beds 1, 2 (Figure 2). Thanks to this arrangement, the rectilinear parts of these oval openings are succeed without end from one end to the other of the needle beds respective 1, 2 alternating from one row to another.

    Chaque ouverture ovale 8a, 8b reçoit un noyau de guidage 9a, 9b qui ménage une fente de guidage en boucle fermée 10a, 10b d'égale largeur entre l'ouverture ovale 8a, 8b et le noyau de guidage respectif 9a, 9b. Chaque noyau de guidage 9a, 9b est positionné dans l'ouverture ovale respective 8a, 8b par deux tiges de positionnement 11a, respectivement 11b qui sont positionnées et fixées dans la plaque parallèle 5 par des vis 12a, 12b.Each oval opening 8a, 8b receives a guide core 9a, 9b which provides a closed loop guide slot 10a, 10b of equal width between the oval opening 8a, 8b and the respective guide core 9a, 9b. Each guide core 9a, 9b is positioned in the respective oval opening 8a, 8b by two positioning rods 11a, respectively 11b which are positioned and fixed in the parallel plate 5 by screws 12a, 12b.

    Un double pignon 13a, 13a', 13b, 13b' est monté pivotant sur une des tiges de chaque paire de tiges de positionnement 11a, 11b solidaires d'un même noyau de guidage 9a, 9b. Seul un pignon 13a, respectivement 13b est monté pivotant sur l'autre tige 11a, 11b solidaire d'un même noyau de guidage 9a, 9b. Les deux pignons 13a, et les deux pignons 13b, solidaires d'un même noyau de guidage 9a, respectivement 9b sont reliés cinématiquement l'un à l'autre par une courroie sans fin 14a, 14b. Quant aux pignons 13a', 13b' ils sont en prise avec une courroie sans fin 15 entraínée par un pignon moteur 16, relié au moteur d'entraínement (non représenté) du métier à tricoter par un arbre à cardan 17 et un pignon conique 18 en prise avec un pignon conique 19 d'un arbre d'entraínement 20 des guides-fils 21. A cet effet ces guides-fils sont solidaires d'une courroie sans fin 22 en prise avec deux pignons 23a, 23b, dont l'un 23a est coaxial et solidaire d'un pignon 24 relié à un pignon 25 solidaire de l'arbre d'entraínement 20 par une courroie sans fin 26.A double pinion 13a, 13a ', 13b, 13b' is pivotally mounted on one of the rods of each pair of positioning rods 11a, 11b integral with the same guide core 9a, 9b. Only a pinion 13a, respectively 13b is pivotally mounted on the other rod 11a, 11b secured to the same core of guide 9a, 9b. The two pinions 13a, and the two pinions 13b, integral with the same guide core 9a, respectively 9b are kinematically connected to each other by a endless belt 14a, 14b. As for the pinions 13a ', 13b' they are engaged with an endless belt 15 driven by a motor pinion 16, connected to the drive motor (not shown) of the knitting loom by a cardan shaft 17 and a bevel gear 18 engaged with a bevel gear 19 of a drive shaft 20 of the wire guides 21. For this purpose these thread guides are integral with an endless belt 22 in taken with two pinions 23a, 23b, one of which 23a is coaxial and secured to a pinion 24 connected to a pinion 25 secured of the drive shaft 20 by an endless belt 26.

    Les courroies sans fin 14a, 14b sont chacune en prise avec un ou plusieurs supports coulissants 27a, 27b comportant chacun une sorte de collerette 27a1, 27b1 (figures 4, 4b). Ces collerettes 27a1, 27b1 sont engagées dans des rainures de guidage 28a, respectivement 28b ménagées dans l'épaisseur des bords des ouvertures ovales 8a, 8b et des noyaux de guidage 9a, 9b, délimitant des fentes de guidage en boucle fermées 10a, 10b. A cet effet, les noyaux de guidage 9a, 9b sont de préférence réalisés en deux parties assemblées 9a1, 9a2, respectivement 9b1, 9b2, pour permettre l'introduction des collerettes 27a1, 27b1 des supports coulissants dans les rainures de guidages 28a, 28b.The endless belts 14a, 14b are each engaged with one or more sliding supports 27a, 27b each comprising a sort of flange 27a 1 , 27b 1 (Figures 4, 4b). These flanges 27a 1 , 27b 1 are engaged in guide grooves 28a, respectively 28b formed in the thickness of the edges of the oval openings 8a, 8b and of the guide cores 9a, 9b, delimiting closed loop guide slots 10a, 10b. For this purpose, the guide cores 9a, 9b are preferably made in two assembled parts 9a 1 , 9a 2 , respectively 9b 1 , 9b 2 , to allow the introduction of the flanges 27a 1 , 27b 1 of the sliding supports in the grooves guides 28a, 28b.

    Chaque support coulissant 27a, 27b porte une paire de cames de tricotage (figures 5, 5b), une came d'ascension en deux parties 29 30 et une came d'abattage 51, destinées à venir en prise avec les poussoirs 31a, 31b des aiguilles à tricoter 3. Chaque came de tricotage 29, 30, 51 est solidaire d'une tige-poussoir 32, respectivement 33.Each sliding support 27a, 27b carries a pair of knitting cams (Figures 5, 5b), an ascending cam in two parts 29 30 and a felling cam 51, intended for engaging the pushers 31a, 31b of the needles knitting 3. Each knitting cam 29, 30, 51 is integral a push rod 32, respectively 33.

    Ces tiges-poussoirs 32, 33 sont montées coulissantes dans les supports coulissants 27a, 27b. La commande de ces cames de tricotage 29, 30 est réalisée par des butées mobiles de sélection 34, 35 disposées dans la trajectoire des tiges 32, 33. La figure 6 illustre le mécanisme permettant de déplacer les cames 29, 30 de l'une à l'autre de leurs positions. Ce mécanisme comporte deux bras supports symétriques 48 auxquels deux leviers 49 sont articulés. Chacun de ces leviers 49 présente une fente 49a dans laquelle une chevilles 50a d'une glissière 50 peut coulisser. Chaque glissière 50 présente une fente en forme de came 50b, chacune étant en prise avec une cheville 32a, respectivement 33a de l'une des tiges-poussoirs 32, 33. Ainsi, suivant la position des butées de sélection 34, 35, les leviers 49 basculent dans l'une ou l'autre de leurs positions (voir figure 6) et mettent en ou hors d'action les cames de tricotage 29, 30.These push rods 32, 33 are slidably mounted in the sliding supports 27a, 27b. Ordering these knitting cams 29, 30 is produced by movable stops selection 34, 35 arranged in the trajectory of the rods 32, 33. Figure 6 illustrates the mechanism for moving the cams 29, 30 from one to the other of their positions. This mechanism has two symmetrical support arms 48 to which two levers 49 are articulated. Each of these levers 49 has a slot 49a in which a pegs 50a of a slide 50 can slide. Each slide 50 has a cam-shaped slot 50b, each being engaged with a pin 32a, respectively 33a of one of the push rods 32, 33. Thus, depending on the position selection stops 34, 35, the levers 49 tilt in either of their positions (see Figure 6) and put the knitting cams 29, 30 on or off.

    Pour maintenir les supports coulissant 27a, 27b dans une position déterminée par rapport aux bords des fentes 10a, 10b, chacun de ces supports coulissants 27a, 27b porte deux galets de guidage 42 (figure 4b) qui appuient contre un même bord des fentes 10a, 10b.To maintain the sliding supports 27a, 27b in a determined position relative to the edges of the slots 10a, 10b, each of these sliding supports 27a, 27b carries two guide rollers 42 (FIG. 4b) which press against a same edge of the slots 10a, 10b.

    Comme on peut l'observer sur les figures 4 et 5 en particulier, les supports coulissants 27a, 27b en prise avec les courroies sans fin 14a, 14b sont entraínés selon des trajectoires définies par les fentes 10a, 10b. Seule une partie droite de la trajectoire ovale ainsi décrite par les supports coulissants 27a, 27b sert à l'actionnement des poussoirs d'aiguilles 31a, 31b. Cette partie droite est celle dans laquelle les supports coulissants 27a, 27b et donc les cames de tricotage 29, 30, 51 qu'ils portent se déplacent dans le sens des flèches F. On peut ainsi constater que les ouvertures ovales 8a d'une rangée étant décalées par rapport aux ouvertures ovales 8b de l'autre rangée, de manière que les centres des demis cercles adjacents des ouvertures ovales 8a, 8b des deux rangées sont situés sur une ligne droite parallèle aux aiguilles à tricoter 3, de sorte que les segments de droites des ouvertures ovales se succèdent sans intervalle entre eux. De ce fait, toutes les aiguilles à tricoter 3 sont actionnées comme dans un métier à tricoter classique. Cependant les masses des supports coulissants mises en mouvement sont de beaucoup inférieures à celles des chariots classiques, ce qui permet d'accroítre la vitesse de tricotage.As can be seen in Figures 4 and 5 in particular, the sliding supports 27a, 27b engaged with the endless belts 14a, 14b are driven according to trajectories defined by the slots 10a, 10b. Only one right part of the oval trajectory thus described by sliding supports 27a, 27b is used to actuate the needle pushers 31a, 31b. This right part is that in which the sliding supports 27a, 27b and so the knitting cams 29, 30, 51 which they carry move in the direction of the arrows F. We can thus see that the oval openings 8a of a row being offset by compared to the oval openings 8b in the other row, so that the centers of the adjacent semicircles of the openings ovals 8a, 8b of the two rows are located on a straight line parallel to knitting needles 3, so that the straight segments of the oval openings follow one another with no gap between them. Therefore, all needles knitting 3 are operated as in a loom classic knitting. However the masses of the sliding supports sets in motion are much less than those of conventional trolleys, which increases the knitting speed.

    La variante illustrée par la figure 7 ne diffère de celle illustrée par les figures 1-6 que par le fait qu'au lieu d'avoir deux rangées de boucles ovales 8a, 8b sur lesquelles circulent les supports coulissants 27a, 27b portant les cames de tricotage 29, 30, 51 cette variante ne comporte qu'une seule courroie 36 faisant toute la longueur de la fonture et guidée par des poulies 38a, 38b. L'entraínement des supports de cames de tricotage 37 solidaires de la courroie sans fin 36 est obtenu par une poulie motrice 39 reliée à un pignon 40 coaxial au pignon 38b par une courroie d'entraínement 41. Ainsi les cames de tricotage 37 se déplacent sur toute la longueur du métier à tricoter dans le sens de la flèche F sur le brin supérieur de la courroie sans fin 36 où elles viennent sélectivement en prise avec les poussoirs des aiguilles à tricoter 3 et reviennent dans le sens opposé le long du brin inférieur de cette courroie 36 où les butées peuvent déplacer les cames en fonction des aiguilles sélectionnées, comme décrit précédemment en relation avec la première forme d'exécution.The variant illustrated in Figure 7 does not differ from that illustrated in Figures 1-6 only by the fact that at instead of having two rows of oval loops 8a, 8b on which run the sliding supports 27a, 27b carrying knitting cams 29, 30, 51 this variant does not include that a single belt 36 making the entire length of the bed and guided by pulleys 38a, 38b. training knitting cam supports 37 integral with the belt endless 36 is obtained by a drive pulley 39 connected to a pinion 40 coaxial to pinion 38b by a drive belt 41. Thus the knitting cams 37 move along the entire length of the knitting loom in the direction of arrow F on the upper end of the endless belt 36 where they selectively engage the pushers knitting needles 3 and come back in the opposite direction along the lower strand of this belt 36 where the stops can move the cams according to the needles selected, as previously described in relation to the first form of execution.

    Les moyens pour faire passer le fil à tricoter d'une fonture à l'autre ne sont pas représentés dans la mesure où il ne sont pas nécessaires à la compréhension de l'invention. Ces moyens sont par ailleurs décrits en détail dans le EP 1 127 970 susmentionné auquel on pourra se référer pour davantage de détails à ce sujet.Means for passing the knitting yarn through a needle to each other are not shown since they are not necessary for understanding the invention. These means are also described in detail in the EP 1 127 970 mentioned above which can be referred to more details on this.

    Cette variante de la figure 7 montre encore un mécanisme de réglage de la longueur des mailles qui s'applique aussi bien à cette variante qu'à la forme d'exécution précédente. Chaque fonture 1, 2 est solidaire de bras 43 dont chacun porte une cheville 43a qui fait saillie sur l'une de ses faces pour s'engager dans une came en forme de fente 44 ménagée dans un organe de réglage 45 monté coulissant sur le bâti (non représenté) du métier à tricoter, dans le sens de la double flèche F1. En déplaçant l'organe de réglage 45, les cames 44 en forme de fentes permettent de déplacer les fontures 1, 2 parallèlement aux aiguilles de tricotage 3, de sorte que l'on modifie ainsi la position relative entre les aiguilles de tricotage 3 et les platines d'abattage 46 (figure 3) et par conséquent la longueur des mailles.This variant of FIG. 7 also shows a mechanism for adjusting the length of the meshes which applies both to this variant and to the previous embodiment. Each needle bed 1, 2 is secured to arms 43 each of which carries a pin 43a which projects on one of its faces to engage in a slot-shaped cam 44 formed in an adjustment member 45 slidably mounted on the frame (not shown) of the knitting loom, in the direction of the double arrow F 1 . By moving the adjusting member 45, the cams 44 in the form of slots make it possible to move the needle beds 1, 2 parallel to the knitting needles 3, so that the relative position between the knitting needles 3 and the felling plates 46 (Figure 3) and therefore the length of the mesh.

    Comme on peut le constater de la description qui précède, le métier à tricoter selon l'invention offre toutes les possibilités de tricotage d'un métier classique en ce qui concerne la sélection des aiguilles et le réglage des longueurs de mailles. Dans la solution proposée par la présente invention, la masse des supports coulissants 27a, 27b n'a rien de comparable avec celle d'un chariot conventionnel, ce qui permet une augmentation sensible de la vitesse de tricotage.As can be seen from the above description, the knitting loom according to the invention offers all the knitting possibilities of a conventional loom with regard to concerns the selection of needles and the adjustment of lengths of meshes. In the solution proposed by this invention, the mass of the sliding supports 27a, 27b has nothing comparable to that of a conventional cart, this which allows a significant increase in the knitting speed.

    Claims (6)

    Métier à tricoter rectiligne pour former un tricot tubulaire sans couture comportant deux fontures (1, 2) munies de rainures de guidage (1a, 2a) des aiguilles de tricotage (3) définissant des trajectoires desdites aiguilles (3) selon lesquelles les aiguilles d'une fonture (1) ne croisent pas celles de l'autre fonture (2), des cames de tricotage (29, 30, 51) pour déplacer lesdites aiguilles (3) le long desdites rainures de guidage (1a, 2a), des moyens d'entraínement (14a, 14b; 41) pour que le déplacement desdites cames de tricotage (29, 30, 51) en prise avec lesdites aiguilles (3) se produise dans un seul sens sur une fonture et dans le sens opposé sur l'autre fonture et des moyens pour faire passer le fil à tricoter des aiguilles d'une fonture (1) à celles de l'autre fonture (2) et vice-versa, caractérisé en ce que chacune desdites cames de tricotage (29, 30, 51) est en prise d'une part avec des moyens de guidage en boucle fermée (10a, 10b) dont une partie au moins s'étend perpendiculairement auxdites rainures de guidage (1a, 2a), d'autre part avec des moyens d'entraínement (14a, 14b; 41) pour les déplacer le long desdits moyens de guidage (10a, 10b), ces cames (29, 30, 51) n'étant susceptible d'être en prise avec lesdites aiguilles (3) que lorsqu'elles se trouvent dans une partie desdits moyens de guidage (10a, 10b) perpendiculaire auxdites rainures de guidage (1a, 2a).Straight knitting machine for forming a seamless tubular knitting comprising two needle beds (1, 2) provided with guide grooves (1a, 2a) of the knitting needles (3) defining paths of said needles (3) according to which the needles a needle bed (1) does not cross those of the other needle bed (2), knitting cams (29, 30, 51) for moving said needles (3) along said guide grooves (1a, 2a), means drive (14a, 14b; 41) so that the movement of said knitting cams (29, 30, 51) in engagement with said needles (3) occurs in one direction on a needle bed and in the opposite direction on the other needle bed and means for passing the knitting yarn from the needles of one needle bed (1) to those of the other needle bed (2) and vice versa, characterized in that each of said knitting cams (29, 30, 51) is engaged on the one hand with closed loop guide means (10a, 10b) at least part of which extends perpendicular to said guide grooves (1a, 2a), on the other hand with drive means (14a, 14b; 41) to move them along said guide means (10a, 10b), these cams (29, 30, 51) being capable of being engaged with said needles (3) only when they are in a part said guide means (10a, 10b) perpendicular to said guide grooves (1a, 2a). Métier à tricoter selon la revendication 1 dans lequel plusieurs boucles fermés (14a, 14b) desdits moyens de guidage (10a, 10b) sont réparties sur deux rangées parallèles s'étendant sur la longueur de chacune des fontures (1, 2), et sont disposées de sorte que lesdites parties s'étendant perpendiculairement auxdites rainures de guidage (1a, 2a) respectives desdits moyens de guidage en boucles fermés (10a, 10b) sont disposées alternativement sur les deux rangées à la suite les unes des autres.The knitting machine according to claim 1 wherein several closed loops (14a, 14b) of said means for guides (10a, 10b) are distributed over two parallel rows extending over the length of each of the needle beds (1, 2), and are arranged so that said parts extending perpendicular to said guide grooves (1a, 2a) respective of said guide means in closed loops (10a, 10b) are arranged alternately on the two rows one after the other. Métier à tricoter selon la revendication 1, dans lequel lesdites fontures sont en prise avec des moyens de réglage (44, 45) susceptibles de les déplacer parallèlement auxdites rainures de guidage (1a, 2a).The knitting machine of claim 1, wherein said needle beds are engaged with adjustment means (44, 45) capable of moving them parallel to said guide grooves (1a, 2a). Métier à tricoter selon la revendication 1, dans lequel une came d'ascension (29) et une came d'abattage (30) sont portées par un support commun (27a, 27b) monté coulissant le long desdits moyens de guidage (10a, 10b), chacune desdites cames (29, 30) étant solidaire d'un poussoir monté coulissant dans ledit support commun (29, 30) pour venir en prise avec des butées mobiles de sélection (34, 35).Knitting machine according to claim 1, in which an ascent cam (29) and a felling cam (30) are carried by a common support (27a, 27b) slidably mounted along said guide means (10a, 10b), each said cams (29, 30) being integral with a pusher mounted sliding in said common support (29, 30) to come in taken with movable selection stops (34, 35). Métier à tricoter selon la revendication 4, dans lequel ledit support commun (27a, 27b) desdites cames de tricotage (20, 30) comporte deux galets de guidage (42) destinés à venir en prise avec un bord d'une fente formant lesdits moyens de guidage en boucle fermée (10a, 10b).The knitting machine according to claim 4, wherein said common support (27a, 27b) of said knitting cams (20, 30) has two guide rollers (42) intended coming into engagement with an edge of a slit forming said closed loop guide means (10a, 10b). Métier à tricoter selon l'une des revendications 4 et 5 dans lequel chacun desdits supports communs (27a, 27b) comporte une collerette (27a1, 27b1) engagée dans une rainure de guidage (28a,28b) ménagée dans les bords délimitant ladite fente formant lesdits moyens de guidage en boucle fermée (10a, 10b).Knitting machine according to one of claims 4 and 5 wherein each of said common supports (27a, 27b) comprises a collar (27a 1 , 27b 1 ) engaged in a guide groove (28a, 28b) formed in the edges delimiting said slot forming said closed loop guide means (10a, 10b).
    EP01810908A 2001-09-19 2001-09-19 Flat knitting machine for making tubular knitting Withdrawn EP1295976A1 (en)

    Priority Applications (1)

    Application Number Priority Date Filing Date Title
    EP01810908A EP1295976A1 (en) 2001-09-19 2001-09-19 Flat knitting machine for making tubular knitting

    Applications Claiming Priority (1)

    Application Number Priority Date Filing Date Title
    EP01810908A EP1295976A1 (en) 2001-09-19 2001-09-19 Flat knitting machine for making tubular knitting

    Publications (1)

    Publication Number Publication Date
    EP1295976A1 true EP1295976A1 (en) 2003-03-26

    Family

    ID=8184146

    Family Applications (1)

    Application Number Title Priority Date Filing Date
    EP01810908A Withdrawn EP1295976A1 (en) 2001-09-19 2001-09-19 Flat knitting machine for making tubular knitting

    Country Status (1)

    Country Link
    EP (1) EP1295976A1 (en)

    Cited By (1)

    * Cited by examiner, † Cited by third party
    Publication number Priority date Publication date Assignee Title
    EP1760176A1 (en) * 2005-08-29 2007-03-07 Anton Percy Spielmann Device for knitting right and left stitches on the same needle bed

    Citations (3)

    * Cited by examiner, † Cited by third party
    Publication number Priority date Publication date Assignee Title
    GB1550848A (en) * 1975-07-16 1979-08-22 Sulzer Morat Gmbh Knitting machine
    WO1995000689A1 (en) * 1993-06-23 1995-01-05 Lambda S.R.L. Knitting machine for the production of tights (pantihose) and the like
    EP1127970A1 (en) * 2000-02-23 2001-08-29 Anton Percy Spielmann Method and flat bed knitting machine for making seamless tubular knitwear

    Patent Citations (3)

    * Cited by examiner, † Cited by third party
    Publication number Priority date Publication date Assignee Title
    GB1550848A (en) * 1975-07-16 1979-08-22 Sulzer Morat Gmbh Knitting machine
    WO1995000689A1 (en) * 1993-06-23 1995-01-05 Lambda S.R.L. Knitting machine for the production of tights (pantihose) and the like
    EP1127970A1 (en) * 2000-02-23 2001-08-29 Anton Percy Spielmann Method and flat bed knitting machine for making seamless tubular knitwear

    Cited By (5)

    * Cited by examiner, † Cited by third party
    Publication number Priority date Publication date Assignee Title
    EP1760176A1 (en) * 2005-08-29 2007-03-07 Anton Percy Spielmann Device for knitting right and left stitches on the same needle bed
    WO2007025400A1 (en) * 2005-08-29 2007-03-08 Spielmann, William, Steven Device for knitting reverse and face stitches on a common needle bed
    US7647793B2 (en) 2005-08-29 2010-01-19 Anton Percy Spielmann Device for knitting reverse and face stitches on a common needle bed
    CN101253288B (en) * 2005-08-29 2011-08-03 威廉·史蒂文·施皮尔曼 Single needle bed positive and negative needle knitting machine
    KR101315339B1 (en) * 2005-08-29 2013-10-08 앙똥 뻬르씨 스삐엘망 Device for knitting reverse and face stitches on a common needle bed

    Similar Documents

    Publication Publication Date Title
    EP0839941A1 (en) Tubular braided structure for composite article, manufacturing it and its applications
    FR2550807A1 (en) ADVANCE AND ORIENTATION APPARATUS FOR SMOOTH ETOFFS IN RELATION TO A SEWING MACHINE
    FR2646176A1 (en) METHOD AND MEANS FOR MOUNTING TRICOTED FABRIC ON A RECTILINE TRACTOR
    FR2698890A3 (en) Control system for thread guide changing devices for knitting machines.
    EP0045758B1 (en) Mechanical control for the shedding of warp ends of a loom and loom comprising such mechanical control
    CH615230A5 (en) Drive assembly for spinning machine
    EP1295976A1 (en) Flat knitting machine for making tubular knitting
    FR2574637A1 (en) DEVICE FOR CUTTING CLOSURE BODIES IN A SLIDE BAND
    BE1003884A5 (en) Tufting PROCESS AND DEVICE FOR IMPLEMENTING THE METHOD.
    FR2482985A1 (en) CONTROL DEVICE FOR THE DRIVEN WHEEL OF DRIVING A FRAME WIRE HOLDER OF A WEAVING MACHINE WITHOUT A SHUTTLE
    EP0285553B1 (en) Control device for the knitting position of needles on a knitting machine
    EP0353511B1 (en) Constituent parts of an apparatus for making tyre reinforcements
    FR2461049A1 (en) TWO-DIMENSIONAL KNITTING DEVICE AND METHOD WITH OSCILLATING WIRE GUIDE IN RELATION TO THE AXIS OF A FRAME ROD
    FR2478683A1 (en) PINCES TYPE WEAVING
    FR2655359A1 (en) DEVICE FOR WEAVING A CROSSED CHAIN THE SIDE EDGE OF A FABRIC IN A WEAVING MATERIAL.
    CH664776A5 (en) YARN SELECTION DEVICE FOR KNITTING MATERIAL.
    EP1734165B1 (en) Insertion device for a two-ply loom and loom incorporating such a device
    EP0131495A1 (en) Device for making a lenoshed selvedge in looms
    WO2001063031A1 (en) Method and knitting machine for rectilinear knitting to form a tubular seamless knitted material
    EP0127184A1 (en) Loom
    EP1069219B1 (en) Selvedge shedding device and weaving loom with such a device
    BE481007A (en)
    FR2735796A1 (en) Loom for weaving pile fabrics with silk pattern weaves
    FR2608643A1 (en) DEVICE FOR MECHANICALLY FORMING A CROSS OF THREADS ON A TEXTILE MACHINE
    BE375419A (en)

    Legal Events

    Date Code Title Description
    PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

    Free format text: ORIGINAL CODE: 0009012

    AK Designated contracting states

    Kind code of ref document: A1

    Designated state(s): AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE TR

    Designated state(s): AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE TR

    AX Request for extension of the european patent

    Extension state: AL LT LV MK RO SI

    AKX Designation fees paid
    REG Reference to a national code

    Ref country code: DE

    Ref legal event code: 8566

    STAA Information on the status of an ep patent application or granted ep patent

    Free format text: STATUS: THE APPLICATION IS DEEMED TO BE WITHDRAWN

    18D Application deemed to be withdrawn

    Effective date: 20030927