EP1589134B1 - Procédé pour la production des tricots avec des fils de trame - Google Patents

Procédé pour la production des tricots avec des fils de trame Download PDF

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Publication number
EP1589134B1
EP1589134B1 EP20040009625 EP04009625A EP1589134B1 EP 1589134 B1 EP1589134 B1 EP 1589134B1 EP 20040009625 EP20040009625 EP 20040009625 EP 04009625 A EP04009625 A EP 04009625A EP 1589134 B1 EP1589134 B1 EP 1589134B1
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EP
European Patent Office
Prior art keywords
needles
weft thread
weft
needle
thread
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.)
Expired - Lifetime
Application number
EP20040009625
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German (de)
English (en)
Other versions
EP1589134A1 (fr
Inventor
Wolfgang Rempp
Eugen Wahl
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.)
H Stoll GmbH and Co KG
Original Assignee
H Stoll GmbH and Co KG
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 H Stoll GmbH and Co KG filed Critical H Stoll GmbH and Co KG
Priority to EP20040009625 priority Critical patent/EP1589134B1/fr
Publication of EP1589134A1 publication Critical patent/EP1589134A1/fr
Application granted granted Critical
Publication of EP1589134B1 publication Critical patent/EP1589134B1/fr
Anticipated expiration legal-status Critical
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Classifications

    • D—TEXTILES; PAPER
    • D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
    • D04B—KNITTING
    • D04B7/00—Flat-bed knitting machines with independently-movable needles
    • D04B7/16—Flat-bed knitting machines with independently-movable needles for producing fabrics consisting of, or incorporating, elastic threads
    • D04B7/18—Flat-bed knitting machines with independently-movable needles for producing fabrics consisting of, or incorporating, elastic threads incorporated as weft or inlaid threads
    • D—TEXTILES; PAPER
    • D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
    • D04B—KNITTING
    • D04B1/00—Weft knitting processes for the production of fabrics or articles not dependent on the use of particular machines; Fabrics or articles defined by such processes
    • D04B1/10—Patterned fabrics or articles
    • D04B1/12—Patterned fabrics or articles characterised by thread material
    • D04B1/123—Patterned fabrics or articles characterised by thread material with laid-in unlooped yarn, e.g. fleece fabrics

Definitions

  • the elasticity properties of knitted fabrics can be influenced in a targeted manner by the insertion of weft threads. While knits usually have a high transverse elasticity, knitted fabrics can be made with at least partially lower transverse strain by the weft insert. This is utilized, for example, in medical knits such as bandages, compression stockings and the like.
  • weft yarn guides are required for the weft insertion, which lay the weft thread leading to the center of the knitting loop on the course.
  • Standard thread guides put the knitting thread against it ... follow the center of the knitting loop into the needle hooks. The introduction of movement thus takes place at a weft thread guide elsewhere than with a standard thread guide.
  • the weft insert therefore requires special equipment of the flat knitting machine with such special thread guides in the prior art methods.
  • the present invention has for its object to propose a method for producing a knitted fabric with weft insertion, in which the weft insert can be made even with einflambaigen crocheted without much additional time.
  • the WO 02/086215 A1 discloses a method for knitting a knitted fabric with a knitting machine, the knitting machine having retaining elements for holding a weft thread on the needle bed. A weft thread is placed on the needle bed. Then the weft thread is fixed on one or more needles of the needle bed. The weft thread is held on the needle bed by the retaining elements.
  • an endless flat belt is known as a drive belt or as a conveyor belt, which contains in the direction of a spirally laid, straight or slightly wavy tension element in the form of a thread or wire and by mesh and at least partially by a binder has a cross connection.
  • the spirals of the tension element are inserted into a tubular knit in right-left binding in non-adjacent wales as a handle.
  • the object is achieved by a method for producing a knitted fabric having the features of claim 1.
  • the weft thread is not inserted on the course, but in the hooks of individual, selected needles in the inventive method.
  • the fixing of the weft thread is done with each needle in the hook he is inserted, and with the adjacent mesh picture edges.
  • the number of fixations across the width of the knitted fabric can be selected according to the knitting requirements of the knitted fabric to be produced.
  • the insert of the weft thread can be done both in empty needles and in mesh-bearing needles.
  • An empty needle that has picked up a weft thread can additionally pick up a stitch from the opposite needle bed.
  • the selection of the fixing positions of the weft thread over the knit width is thereby very flexible. It can also be used by knitting row to knitting row repeatedly different needles for insertion of the weft.
  • the method according to the invention has the advantage that it is not necessary to transfer stitches in front of the weft insert, neither for single-surface nor for double-sided knitted fabrics.
  • the weft insert is therefore a process that takes little knitting time.
  • the adjacent needles can be raised over the needle bottom at least so far that the needle bottoms can slide over the weft.
  • This lifting of the adjacent to the needles with pickled weft needles on the needle bottom can be done for example by a knitting lock the flat knitting machine or via switchable cams or casseroles on the needle bottom. But even a lifting of the needles only by the fixed weft thread is possible.
  • the weft thread can be pressed down so that the adjacent to the needles with pickled weft needles with their needle bottoms slide over the weft yarn and thus can easily form stitches.
  • hold-down plates can be used for pressing down the weft thread. But even by applying appropriate knitting techniques for the production of the knitted fabric, the weft thread can be pushed so far down that the movement of the adjacent to the needles with pickled weft needles is not hindered by the weft.
  • the weft insert can be performed by means of a standard thread guide.
  • the insert of the weft thread takes place at the same point, that is trailing to the center of the knitting, as in the yarn guides with the knitting threads or the.
  • the knitting lock representation off Fig. 1 illustrates the weft insert in the prior art methods of making weft insert wefts on a flat knitting machine.
  • the knitting lock 10 moves in the direction of arrow X.
  • the line SM marks the middle of the knitting loop. It is a weft guide SFF and a normal thread guide NFF provided.
  • the weft yarn guide SFF places the weft yarn at a distance V leading to the middle of the knitting cam SM on the course not shown here. At this position, the sprouting of needles 30 by the knitting cam 10 is just starting.
  • the weft yarn inserted in this position is covered by the underside of the spiked knitting needles and therefore can not be caught by a needle hook.
  • Fig. 2 now illustrates the insertion of a weft thread 5 in the hook 31 of a needle 3.
  • the needle 3 is in the needle bed 1 in the direction of arrow Y outwardly and inwardly movable.
  • Fig. 2 shows the position of the needle 3 after the insertion of the weft thread 5 and retraction of the needle 3 until the weft thread 5 abuts a stitch pattern edge 21 of a stitch pattern 2 adjacent to the stitch 3. In this position, the weft 5 is fixed exactly.
  • a stitchless needle 3 shows is in Fig. 3 illustrated that the needle 3 before the insertion of the weft thread 5 in her needle hook 31 can already wear a mesh 6 of the knitted fabric.
  • the weft 5 is simply inserted in addition to the mesh 6 in the needle hook 31.
  • Fig. 4 shows in the same view as the FIGS. 2 and 3 a needle 3, which has taken over the insertion of the weft thread 5 still a stitch 6 'from the opposite needle bed.
  • the weft thread 5 is here behind the stitch 6 ', whereby the weft thread 5 is tied to the outside of the knitted fabric as soon as the stitch 6' is knitted.
  • the weft thread tied to the fabric inside as soon as the stitch 6 is knitted, since here the weft 5 is in front of the stitch 6.
  • Fig. 5 clarified in the view according to Fig. 2 in that a needle 3 ', which is arranged adjacent to the needle 3 with the weft thread 5 inserted in its needle hook 31, lifts off the needle base 11 of the needle bed 1 in order to be able to slide with its needle underside 32 over the weft thread 5.
  • This lifting of the needle 3 ' can be done for example by the knitting lock 10 or via switchable cams or casseroles on the needle base 11.
  • the lifting movement of the needle can also take place without targeted control of the needle in that its rounded needle hook 31 'runs on the fixed weft thread 5.
  • Another way of enabling the needle 3 'to slide over the weft thread 5 is to press the weft thread 5 down the needle 3 laterally.
  • hold-down boards can be used.
  • by using appropriate knitting techniques, such a depression of the weft thread 5 is possible.

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

Claims (8)

  1. Procédé de production d'un tricot avec insertion de fil de trame sur un métier à tricoter rectiligne, caractérisé par les stades :
    a) chasse d'aiguilles (3) dans les crochets (31) desquels un fil (5) de trame doit être inséré,
    b) insertion du fil (5) de trame dans les crochets (31) des aiguilles (3) chassées,
    c) retour des aiguilles (3) jusqu'à ce que le fil (5) de trame se trouvant dans les crochets (31) des aiguilles s'applique à l'un des bords (21) de formeur de mailles voisins de l'aiguille (3) concernée,
    d) formation de mailles pour le tricot par au moins un fil à tricoter, les aiguilles (3') voisines des aiguilles (3) à fil (5) de trame inséré étant éloignées au-delà du fil (5) de trame,
    caractérisé en ce que les aiguilles (3') voisines des aiguilles (3) à fil (5) de trame inséré sont soulevées si loin au-dessus du fond (11) de l'aiguille que les côtés (32) inférieurs de l'aiguille peuvent glisser sur le fil (5) de trame.
  2. Procédé suivant la revendication 1, caractérisé en ce que les aiguilles (3') sont soulevées au-dessus du fond (11) de l'aiguille par une serrure (10) de tricotage du métier à tricoter rectiligne ou par des cames commutables ou par des rampes au fond (11) de l'aiguille.
  3. Procédé suivant la revendication 1, caractérisé en ce que les aiguilles (3') sont soulevées au-dessus du fond (11) de l'aiguille au moyen du fil (5) de trame immobilisé.
  4. Procédé suivant l'une des revendications 1 à 3, caractérisé en ce que le fil (5) de trame est repoussé vers le bas, de sorte que les aiguilles (3') voisines des aiguilles (3) à fil (5) de trame inséré peuvent glisser par leur côté (32) inférieur sur le fil (5) de trame.
  5. Procédé suivant la revendication 4, caractérisé en ce que le fil (5) de trame est repoussé vers le bas par des platines de maintien vers le bas.
  6. Procédé suivant la revendication 4, caractérisé en ce que le fil de trame est repoussé vers le bas par l'application de technique de tricotage adéquate pour la production du tricot.
  7. Procédé suivant l'une des revendications 1 à 6, caractérisé en ce que l'insertion de fils de trame est effectuée au moyen d'un guide-fil standard (NFF).
  8. Procédé suivant l'une des revendications 1 à 7, caractérisé en ce que le fil (5) de trame est inséré dans les crochets (31) d'aiguilles (3) vides et/ou d'aiguilles (3) portant des mailles.
EP20040009625 2004-04-23 2004-04-23 Procédé pour la production des tricots avec des fils de trame Expired - Lifetime EP1589134B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP20040009625 EP1589134B1 (fr) 2004-04-23 2004-04-23 Procédé pour la production des tricots avec des fils de trame

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP20040009625 EP1589134B1 (fr) 2004-04-23 2004-04-23 Procédé pour la production des tricots avec des fils de trame

Publications (2)

Publication Number Publication Date
EP1589134A1 EP1589134A1 (fr) 2005-10-26
EP1589134B1 true EP1589134B1 (fr) 2012-07-25

Family

ID=34924701

Family Applications (1)

Application Number Title Priority Date Filing Date
EP20040009625 Expired - Lifetime EP1589134B1 (fr) 2004-04-23 2004-04-23 Procédé pour la production des tricots avec des fils de trame

Country Status (1)

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EP (1) EP1589134B1 (fr)

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB393394A (en) * 1932-04-02 1933-06-08 Charles Clutsom Improvements in or relating to knitted fabrics
DE1284734B (de) 1963-05-24 1968-12-05 Max Schlatterer Maschinenbandw Endloses Flachband als Treibriemen bzw. als Transportband od. dgl.
US5615562A (en) 1992-07-08 1997-04-01 Tecnit-Technische Textilien Und Systeme Gmbh Apparatus for production of weave-knit material
FR2823771B1 (fr) 2001-04-23 2003-06-13 Terrot Procede de tricotage d'un article ayant au moins localement une structure tramee et un article tricote

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Publication number Publication date
EP1589134A1 (fr) 2005-10-26

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