EP0295703B1 - Procédé de fabrication d'une étoffe peluchée à dessin et métier à tricoter circulaire à plusieurs systèmes pour sa mise en oeuvre - Google Patents

Procédé de fabrication d'une étoffe peluchée à dessin et métier à tricoter circulaire à plusieurs systèmes pour sa mise en oeuvre Download PDF

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Publication number
EP0295703B1
EP0295703B1 EP88109690A EP88109690A EP0295703B1 EP 0295703 B1 EP0295703 B1 EP 0295703B1 EP 88109690 A EP88109690 A EP 88109690A EP 88109690 A EP88109690 A EP 88109690A EP 0295703 B1 EP0295703 B1 EP 0295703B1
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EP
European Patent Office
Prior art keywords
pile
needles
thread
sinker
plush
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
EP88109690A
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German (de)
English (en)
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EP0295703A3 (en
EP0295703A2 (fr
Inventor
Walter Richard Schmidt
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.)
SCHMIDT, URSULA DOROTHEA
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Schmidt Ursula Dorothea
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Publication date
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Publication of EP0295703A2 publication Critical patent/EP0295703A2/fr
Publication of EP0295703A3 publication Critical patent/EP0295703A3/de
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Publication of EP0295703B1 publication Critical patent/EP0295703B1/fr
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    • D—TEXTILES; PAPER
    • D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
    • D04B—KNITTING
    • D04B9/00—Circular knitting machines with independently-movable needles
    • D04B9/12—Circular knitting machines with independently-movable needles with provision for incorporating pile 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
    • D04B1/02—Pile fabrics or articles having similar surface features
    • 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
    • D04B15/06—Sinkers
    • 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
    • D04B15/322—Cam systems or assemblies for operating knitting instruments in circular knitting machines with needle cylinder and dial
    • 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
    • D04B15/34—Cam systems or assemblies for operating knitting instruments for dials
    • 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 invention relates to a method for producing a patterned plush fabric according to the preamble of claim 1 and a circular knitting machine for carrying it out according to the preamble of claim 5.
  • the needles which are controlled in two groups, are supplied with a basic thread and two plush threads, the plush thread being fed first being laid in waves in front of and behind the needles and must be entangled under this braking action.
  • This wavy laying of the first plush thread can only be done with an exact adjustment of the thread guide tube and using needles with a plating head and a uniform thread speed, as given by the goods construction according to DE-C-671 333 is to be mastered to some extent.
  • the thread tensions that occur in the first plush thread place special demands on the yarn material and impair the formation of the plush handles in comparison to the second plush thread.
  • FIG. 20 improves the insertion of the plush threads compared to the aforementioned proposal, but does not eliminate the wave-like laying.
  • DE-A-3 024 075 does not show how the intention is to ensure that the previously inserted plush threads come onto the sinker lugs and thus form plush handles.
  • the basic thread is fed to the needles of the cylinder and the dial. While larger stitches are advantageously formed in the dial, the cylinder needles are only pulled back until the last stitches formed ("catch on the needle") are applied. Then, in successive knitting systems, the cylinder needles are selected according to the pattern, raised in the catching position and a plush thread is fed to them. After the selected needles have grasped the desired plush thread, only these needles are withdrawn into the knock-off position, forming stitches from the previously inserted basic thread and the plush thread.
  • the basic thread required for stitch formation is drawn from the stitches formed by the dial; at the same time plush loops are also formed by plush elements which are arranged in the cylinder in alternation with the latch needles.
  • This proposal has the advantage that the basic thread is ready for measurement by the partial processing for the further knitting process (preculation) and the plush threads are immediately knitted into stitches after being fed.
  • the disadvantage of this double-faced fabric lies in a limited plush thread density and in the fact that the plush threads can only emerge from the fabric between the cylindrical wales.
  • the basic thread is first formed into loops by retraction of the needles in the order ("catch on the needle") over sinker plates (preculation), whereupon selected needles for picking up the respective plush thread are driven out in successive systems.
  • the sinker is designed in accordance with a conventional plush board with a board nose, over which, however, only the basic thread is preculcated.
  • the expelled needles are withdrawn again in the order.
  • the respective plush thread is looped over the plush formation edges of additional, special plush sinkers, which also serve as an inclusion sinker for the basic thread loops.
  • additional, special plush sinkers which also serve as an inclusion sinker for the basic thread loops.
  • the advantages of this proposal are that an uncontrollable thread tension of the plush threads is avoided by the immediate formation of sleeves from the plush threads and that a faultless thread feed is also possible.
  • the disadvantages lie in the fact that for a system group there is a large space requirement due to the preculation of all threads and the preculation of the plush threads must be exactly matched to the depth of the preculation of the base thread.
  • the preculation of the base thread is indispensable in this concept, since only through the higher handles of the base thread can a sufficient expulsion of the needles be taken for grasping the plush threads, without the base thread sliding off the tongue.
  • the needle should at most be driven out to such a high position in which the spoon of the open tongue does not rise above the cutting edge of the board. Since in this position the needle hooks only protrude very slightly beyond the wedge edges of the plush sinkers, direct insertion of a plush thread into the needle hooks would not be possible in this position.
  • a further disadvantage is that the precured sleeves from the base and the plush threads have to be released by the respective sinker noses during the stitch formation and therefore, in particular, the formation of the plush loops cannot be controlled at the decisive moment. Only the subsequent insertion of the Ku board lugs Lierplatinen in the previously formed plush handles when the needles are in the concentric position and retensioning the plush handles causes a satisfactory handle formation. However, this process requires a certain minimum length of the plush handles and thus precludes the production of short plush handles.
  • plush loops which are still connected directly to the thread guide while being released by the sinkers via thread floats, can be reduced by the thread tension forces that occur.
  • the invention is intended to be able to create a product as it is formed by a machine and a method in accordance with DE-C-3 145 307.
  • the task solution according to claim 2 has the advantage of a further reduction in the space requirement, since the feeding of the first plush thread and that of the base thread take place in one go or in one work step and there is no waiting for the feeding of the first plush thread until the plush blank is inserted between the needle shafts.
  • the measure of claim 4 saves additional space, since by saving the pre-formulation of the last plush thread, the plush board can begin its retraction movement earlier and therefore the needle can be withdrawn directly to the tee position without a rest phase in the order.
  • a circular knitting machine which is particularly suitable for carrying out the method is specified in claim 5.
  • Fig. 1 shows the essential structure of a multi-system circular knitting machine according to the invention.
  • Tongue needles 1 are mounted in the channels of the cylinder Z. Similar movements of all needles 1 take place via a needle foot 1a through lock parts A.
  • Pattern slides 2 are articulated to the needles 1 and can be pivoted by selectors 3 from a basic position (shown by full lines) into a selection position (shown by broken lines). The pivoting of the selectors 3 and thus the pattern slide 2 is carried out by generally well-known pattern devices which act, for example, on a pattern foot 3a, which can be arranged on the selectors 3 at different heights.
  • the pattern slide 2 remains in the basic position, the movement of the corresponding occurs needle 1 over the pattern foot 2a through lock parts C, while a pattern foot 2b remains sunk in the cylinder Z. If, on the other hand, the pattern slide 2 is pivoted by the selector 3, the pattern foot 2b emerges from the cylinder Z and can thus be controlled by lock parts B together with the corresponding needles 1, while the pattern foot 2a is sunk in the cylinder. The needle movement via the pattern foot 2a and the lock parts C can therefore take place independently of the needle movement of other needles 1 via the pattern foot 2b and the lock parts B.
  • plush sinkers 4 and thread laying sinkers 5 stored in a sinker ring R takes place via respective feet 4a and 5a through lock parts D of the sinker lock.
  • the plush sinkers 4 and the thread laying sinkers 5 each carry out uniform movements without selection.
  • the design of the plush boards can be different, as is illustrated in more detail in FIGS. 2 and 3, to which reference is made in this regard.
  • FIG. 2 shows a plush board 4 with a tapping edge 4d for the base thread and a plush formation edge 4e for the plush thread on the top of a board nose 4b.
  • the board nose 4b has a bevel 4h in front of the plush formation edge 4e, so that the tip of the board nose 4b is arranged close to the tapping edge 4d immediately above a board groove 4c.
  • the plush board 4 also has a pre-edging edge 4f and a tensioning edge 4g.
  • the tip of the board nose 41b lies above the plush formation edge 41e. Otherwise, the tucking edge 41d for the basic thread, the plush formation edge 41e, the pre-curling edge 41f and the tensioning edge 41g are also present.
  • the tip of the board nose 41b is not pulled down in the direction of the board groove 41c, but points upwards; this results in a small overall length of the board nose 41b and thus a shorter retraction path.
  • the plush boards 4 and 41 and also different designs of the plush boards can optionally be used in all the exemplary embodiments explained.
  • a thread laying plate 5, which has a thread laying edge 5b, is preferably arranged in each channel of the sinker ring R in addition to a plush sinker 4 or 41.
  • plush boards 4 are used.
  • the knitting process begins with the lifting of all the needles 1 through the lock part A1 into the knitting position.
  • the plush boards 4 are guided through the lock part D1.
  • lock part D1 Via a press part E1 arranged in the area of lock B, all feet 2b of pattern slide 2 are sunk into cylinder Z, so that all pattern slide 2 and selectors 3 assume their basic position.
  • the plush sinkers 4 are guided inwards by lock part D2 so that the last plush loops formed are stretched by the tensioning edges 4g and the plush stitches are pulled on the needle shaft, as can be seen in FIG. 5 is.
  • the needles 1 also begin to retract through the lock part A2 into a lower thread-laying position, and the plush sinkers 4 and thread laying boards 5 are moved outward by the lock parts D3 and D4. This enables the basic thread to be fed into VI.
  • the thread guide F1 presents the basic thread G1 below the sinker tip of the plush sinker 4 to the needles 1.
  • the plush sinkers 4 are pushed in again by the lock part D5, so that the basic thread G1 enters the sinker groove 4c.
  • the board noses 4b are inserted into the previously formed plush loops, which again reach the plush formation edge 4e via the bevel 4h.
  • the inward movement of the plush sinkers takes place up to a position in which the pre-cutting edges 4f are arranged between the needle shafts.
  • selectors 3 and pattern slides 2 have been pivoted into the selection position by a conventional pattern device S1, not shown in FIG. 1.
  • the needles 1 of the pattern slide 2 remaining in the basic position can be raised via their pattern foot 2a through the lock part C1 into an upper thread-laying position and a first plush thread can be fed to this at VII.
  • the pre-edging edges 4f cover the needle heads of the needles remaining in the lower thread laying position, while the selected needles have also been raised.
  • the thread guide F2 now presents the first plush thread P1 to the selected needles, while at the same time the inward movement of the thread laying plates 5 takes place through the lock part D6.
  • This movement ends at VIII and causes the plush thread P1 to pass through the thread laying edge 5b of the thread laying sinkers 5 with absolute certainty despite the small height difference between the upper and lower thread laying positions Needle heads of the selected needles arrive, as can be seen from FIG. 8.
  • the needles in the upper thread-laying position are withdrawn via foot 2a of the pattern slide 2 by means of the lock part C2 in the application position (“catch on the needle”), as a result of which the first plush thread P1 is patterned into thread loops at IX over the pre-edging edges 4f.
  • the basic thread G1 can continue to run unhindered in the needle heads and sinker grooves for stitch formation, while the plush thread P1 no longer moves laterally with respect to the sinkers and needles after it has been preculcated.
  • the thread laying boards can be moved outwards by means of the lock part D7. After the retraction of the needles over the feet 2a of the pattern slide, those needles are lifted over the feet 2b of the pivotable pattern slide by means of the lock part B1 into the upper thread-laying position, which have previously passed under the plush thread P1 in the lower thread-laying position.
  • the thread laying sinkers 5 have been pulled out so far by the lock part D7 that, according to FIG. 10, the thread guide F3 can feed a second plush thread P2 to the raised needles.
  • the thread laying boards 5 are pushed inwards by the lock part D8, so that at XI the thread laying edge 5b has inserted the plush thread P2 into the needle heads (FIG. 11).
  • the plush sinkers 4 are moved outwards by the lock part D10 so that at XIII the tensioning edges 4g emerge from the needle circle and the plush loops are released from the pre-edging edges 4f (FIG. 13).
  • the thread laying boards 5 are pulled outwards by the lock part D9.
  • the plush loops rest on the plush formation edges 4e. An uncontrollable change in the plush bows is therefore excluded. If, through appropriate selection of needles, a pre-selected plush loop is still directly connected to the thread guide, its regression is also prevented by the plush thread resting on the plush formation edge 4e during stitch formation. It is thus possible to shape the last plush thread fed directly over the plush formation edges 4e without prior preculation. While a pre-formulation of the second plush thread is also illustrated above for a clearer illustration of the basic functional sequence, such pre-formulation can therefore be dispensed with in practice, as will be explained in more detail in later exemplary embodiments.
  • FIG. 15 shows an exemplary embodiment based on FIG. 4, in which two plush threads and one base thread are only knitted by a part of the needles.
  • a pressing part E2 presses all pattern feet 2b into the needle cylinder Z during the respective retraction movement of the needles 1 into the knock-off position.
  • the pattern slide 2 can therefore be pivoted by an additional selection device S1a.
  • an additional selection device S1a About the feet 2a of the pattern slide 2 remaining in the basic position, only the needles 1 provided for this purpose are driven out in the knitting position via the lock part C3 and withdrawn by the lock part A2 in the thread-laying position, while the other needles are in the concentric position by switching off the lock part A1 (see FIG. 4) remain.
  • the pattern slides 2 remaining in the basic position are now selected by a selection device S1 in accordance with the exemplary embodiment described above.
  • the feet 2b are all sunk in the cylinder Z until the selection device S1 is reached, and then come out of the cylinder Z to the part selected according to the pattern in order to be caught by the lock parts B.
  • FIGS. 1b to 22 Another embodiment using plush boards 41 (FIG. 3) is shown in FIGS. 1b to 22.
  • the shorter board nose 41b reduces the movement paths for the board 41.
  • Fig. 1b all needles 1 by lock part A5 raised in knitting position.
  • press part E3 sinks all feet 2b in the needle cylinder, so that pattern slides 2 predetermined according to the pattern can be pivoted into the selection position by a pattern device S2 immediately thereafter.
  • the plush sinkers 41 are moved inwards by the lock part D11, so that the previously formed plush loops can be retensioned by the tensioning edges 41g.
  • the needles connected therewith are raised by the lock part B3 beyond the necessary knitting position.
  • all other needles are withdrawn via the pattern foot 2a through the lock part C4 into a lower thread-laying position, so that a plush thread can be fed in XVII.
  • Fig. 17 shows that the thread guide F4 feeds the plush thread P3 to the fully raised needles.
  • the height difference from the needles in the lower thread position is sufficiently large to insert the plush thread P3 directly into the needle heads via the thread guide F4.
  • the plush and thread laying boards 41 and 5 are withdrawn by the lock parts D12 and D13 for feeding the basic thread G2 by the thread guide F5.
  • the needles raised to receive the plush thread P3 are pulled back into an upper thread-laying position by the lock part B4, in which they are still clearly above the pre-edging edges 41f of the sinkers 41 with their needle hooks and the plush thread resting in the needle hook bows.
  • the position of the plush thread P3 in the needle hook can also be checked by an inward movement of the thread laying sinkers 5 via the lock part D15; however, this inward movement can also be omitted in view of the high level of expansion of the needles 1 for receiving the plush thread P3, as a result of which the retraction movement of the thread laying boards 5 can be dispensed with and therefore the feeding of the second plush thread can take place earlier and the system width can be further reduced.
  • FIG. 18 shows the plush thread P3 formed into sleeves over the pre-curling edges 41f, the basic thread G2 can continue to be fed unaffected for stitch formation.
  • the thread laying boards 5, the inward movement of which is shown only for the sake of better illustration, are then moved outwards by the lock part D16 or are already in the retracted position, and the lock part C5 lifts all the needles 1 remaining in the lower thread laying position into an upper thread laying position.
  • these further plush threads P4 can then be fed to these needles.
  • the thread guide F6 places the plush thread P4 in front of the open needle heads. Then the thread laying sinkers are moved inwards by lock part D17 and thereby the plush thread P4 at XX is inserted through the thread laying edge 5b into the needle heads of the needles 1 located in the upper thread laying position (FIG. 20).
  • the lock parts D18 and D19 pull the plush and thread laying boards slightly outwards, so that the plush threads P3 and P4 at XXI come out of the area of the pre-edging edges 41f. As can be seen from FIG. 21, the plush thread P4 has not been preformed into loops.
  • the plush sinkers 41 are now pushed in again by the lock part D20 and all the needles are brought into the striking position by the needle counterbore A7 (XXII).
  • the corresponding needles form it into plush loops via the plush formation edges 41e (FIG. 22).
  • the plush thread P3 floats over such areas in which the plush thread P4 is knitted into plush loops, the precured sleeves of which are knitted as soon as the plush thread P4 forms floats.
  • the necessary width of a knitting system can be further reduced and the number of knitting systems can be increased by the direct formation of plush loops over the plush formation edges without pre-pretreating the last plush thread supplied.
  • Fig. 23 shows an embodiment in which three plush threads are alternately knitted with a basic thread. Essentially, the procedure is as described in the examples already described.
  • Lock parts D23 and D24 have been moved outwards, the basic thread is fed through the thread guide F7 (analogous to thread guide F1 in FIG. B).
  • a sample device S3 pivots selected sample slides 2, which were previously brought into the basic position by pressing part E4.
  • the needles are lifted into an upper threading position by the lock part B7 and - after the lock part D25 has steered the plush sinkers 4 inwards - a plush thread is fed in by the thread guide F8 (see analogously to FIG. 7).
  • the plush thread has been inserted into the needle heads by the control of the thread laying boards 5 via lock part D27 (analogously to FIG.
  • lock part B8 pulls the selected needles back into the order (analogously to FIG. 9).
  • the lock part Cb now lifts the needles remaining in the lower thread laying position into an upper thread laying position, whereupon these needles are sorted again by a pattern device S4.
  • Pattern slides 2 which are not pivoted by the pattern device S4 pull their needles back into a lower thread-laying position by the retraction of the feet 2a on the lock part C7.
  • the pattern slides 2 pivoted during the second selection come out of the cylinder with their feet 2b behind the lock part B8.
  • a further plush thread can be fed to the needles controlled in the upper thread laying position by thread guide F9 (analogously to FIG. 10).
  • the plush thread is pushed by the inward movement of the thread laying boards 5 on the lock part D29 through the thread laying edges 5b into the needle hooks (analogous to FIG.
  • the lock parts D32 and D33 pull the plush sinkers and thread laying sinkers outward from the pre-edging edges 4f to release the plush threads.
  • the plush sinkers 4 are in turn steered inward by the lock part D34 and the needles are withdrawn in the knock-off position.
  • the precured loops of the two plush threads fed first lie on the plush formation edges 4e. This ensures that the plush loops of these threads are properly formed.
  • the last plush thread fed in is shaped directly over the plush formation edges 4e into plush loops without prior training to loops during the stitch formation process.
  • the selection of the needles for detecting one of the plush threads by means of a pattern device can of course also be made by means of pattern feet which are arranged differently on the needles themselves and which take over the function of feet 2a and 2b.
  • the basic thread G1 or G2 is fed through the basic thread guides F1 or F5 or F7 at the level of the sinker throats 4c or 41c and placed at this height on the needles 1 with the needle tongue open.
  • the basic thread G1 or G2 it is also readily possible to feed the basic thread G1 or G2 at a height above the sinker lugs 4b or 41b and then pull it down into the height of the sinker grooves 4c or 41c by retracting the needles 1.
  • FIGS. 4, 16 or 23 shows a section of a product as can be produced according to one of the exemplary embodiments according to FIGS. 4, 16 or 23.
  • the basic thread G11 was alternately knitted into stitches with a first plush thread P11 and a second plush thread P21.
  • the not knitted plush thread lies above the plush handles of the other plush thread as thread float on the top of the plush surface.
  • a second row of stitches was formed from the basic thread G12, the first plush thread P13 and the second plush thread P23. If three plush threads are knitted per row of stitches according to the exemplary embodiment in FIG. 23, then each lies Floatings of two plush threads over the plush handles of the plush thread knitting with the basic thread.
  • the plush handles are cut open.
  • the thread floats that protrude beyond are also removed and the goods are given their final appearance.

Claims (5)

1. Procédé de fabrication d'un tricot peluché selon un dessin sur un métier à tricoter circulaire à plusieurs chutes comportant des aiguilles à clapet qui sont portées dans un cylindre et peuvent être manoeuvrées par des dispositifs de sélection, ainsi que des platines de peluche qui sont disposées sur un anneau à platines, qui se déplacent toujours de la même façon et qui présentent chacune une gorge de platine, une arête de formation de la peluche et une arête de précueillage,
dans lequel au moins deux fils de peluche sont amenés l'une derrière l'autre et tricotés avec un fil de fond amené précédemment,
comportant les étapes de procédé suivantes;
a) montée de toutes les aiguilles prévues pour tricoter et rappel de toutes les platines de peluche,
b) amenée du fil de fond aux aiguilles soulevées et positionnement de ces aiguilles au niveau des gorges de platine,
c) positionnement de chaque platine de peluche de façon que le fil de fond soit enserré par la gorge de la platine et que l'arête de précueillage de cette dernière se trouve entre des tiges d'aiguille voisines,
d) levée d'un premier groupe d'aiguilles dans une position supérieure de jetée du fil,
e) amenée d'un premier fil de peluche devant le premier groupe d'aiguilles qui se trouvent dans leur position supérieure de jetée du fil et insertion du premier fil de peluche dans le crochet d'aiguille,
f) rappel du premier groupe d'aiguilles de leur position supérieure de jetée du fil avec le premier fil de peluche dans leur crochet, pour venir en position d'amenée de la maille sur le bec,
g) répétition des étapes d) à f) pour un second et éventuellement d'autres fils de peluche avec un second et éventuellement d'autres groupes d'aiguilles,
h) montée successive d'un dernier groupe d'aiguilles dans la position supérieure de jetée du fil,
i) amenée d'un dernier fil de peluche devant le dernier groupe des aiguilles qui sont dans leur position supérieure de jetée du fil et insertion du dernier fil de peluche dans les crochets d'aiguille,
j) rappel des platines de peluche avec leurs arêtes de précueillage en dehors de la zone des tiges des aiguilles après l'amenée du dernier fil de peluche et avant le rappel de toutes les aiguilles dans leur position d'abattage, et
k) guidage des platines de peluche avec leurs arêtes de formation de la peluche entre les tiges d'aiguilles voisines, pendant le mouvement de rappel des aiguilles dans la position d'abattage et formation des boucles de peluche au moyen des arêtes de formation de peluche.
2. Procédé de fabrication d'un tricot peluché selon un dessin sur un métier à tricoter circulaire à plusieurs chutes comportant des aiguilles à clapet qui sont portées dans un cylindre et peuvent être manoeuvrées par des dispositifs de sélection, ainsi que des platines de peluche qui sont disposées sur un anneau à platines, qui se déplacent toujours de la même façon et qui présentent chacune une gorge de platine, une arête de formation de la peluche et une arête de précueillage,
dans lequel au moins deux fils de peluche sont amenés l'un derrière l'autre et sont tricotés avec un fil de fond,
comportant les étapes de procédé suivantes
a) montée en position de tricotage de toutes les aiguilles prévues pour le tricotage,
b) levée d'un premier groupe d'aiguilles éventuellement au-dessus de la position de tricotage, tandis qu'un second groupe, et éventuellement d'autres groupes, d'aiguilles passent dans une position inférieure de jetée du fil,
c) amenée d'un premier fil de peluche devant le premier groupe d'aiguilles qui se trouvent dans leur position de levée,
d) rappel de toutes les platines de peluche et rappel du premier groupe des aiguilles qui se trouvent dans une position supérieure de jetée du fil,
e) amenée du fil de fond aux aiguilles qui se trouvent dans la position supérieure et dans la position inférieure de jetée du fil,
f) positionnement de chaque platine de peluche de façon telle que le fil de fond soit enserré par la gorge de la platine et que l'arête de précueillage se trouve entre les tiges d'aiguilles voisines,
g) rappel du premier groupe des aiguilles pour passer de la position supérieure de jetée du fil dans une position d'amenée de la maille sur le bec,
h) montée suivante des aiguilles du second groupe d'aiguilles pour passer dans la position supérieure de jetée du fil,
i) amenée d'un second fil de peluche devant les aiguilles, ainsi levées, du second groupe des aiguilles qui se trouvent dans leur position supérieure de jetée du fil et insertion du second fil de peluche dans les crochets d'aiguille,
j) éventuellement répétition de l'étape g) avec les aiguilles, levées, du second groupe d'aiguilles et des étapes h) et i) avec les aiguilles des autres groupes éventuels d'aiguilles et amenée d'autres fils de peluche,
k) rappel des platines de peluche avec leurs arêtes de précueillage en dehors de la zone des tiges des aiguilles après l'amenée du dernier fil de peluche et avant le rappel de toutes les aiguilles dans leur position d'abattage, et
l) guidage des platines de peluche avec leurs arêtes de formation de la peluche entre les tiges d'aiguilles voisines, pendant le mouvement de rappel des aiguilles dans la position d'abattage et formation des boucles de peluche au moyen des arêtes de formation de peluche.
3. Procédé selon la revendication 1 ou 2, caractérisé par le fait que le rappel des platines de peluche (4, 41) pour dégager les fils de peluche (P1, P2; P3, P4) des arêtes de précueillage (4f; 41f) ne se fait qu'après que les aiguilles (1) sélectionnées pour cela, ont mis le dernier fil de peluche (P2; P4) en forme de boucle par l'intermédiaire des arêtes de précueillage (4f; 41f).
4. Procédé selon la revendication 1 ou 2, caractérisé par le fait que le rappel des platines de peluche (4, 41) pour dégager les fils de peluche (P1, P2; P3, P4) des arêtes de précueillage (4f; 41f) se fait avant que le dernier fil de peluche (P2; P4) vienne en contact avec les arêtes de précueillage (4f; 41f), de sorte que le groupe d'aiguilles levées en dernier lieu dans la position supérieure de jetée du fil peuvent être directement rappelées dans la position d'abattage et, par l'intermédiaire des arêtes (4e; 41e) de formation des peluches y forment des boucles de peluche à partir des derniers fils de peluche (P2, P4) guidés en dernier lieu.
5. Métier à tricoter circulaire à plusieurs chutes comportant des aiguilles à clapet 1) portées dans un cylindre à aiguilles (Z) et un dispositif de platines correspondant à chaque aiguille et comprenant au moins deux platines (4; 41) pouvant se déplacer indépendamment l'une de l'autre, étant précisé que chaque dispositif de platines présente une arête d'abattage (4d, 41d), une arête de cueillage et une arête de précueillage (4f; 41f), étant précisé que les arêtes de précueillage (4f, 41f) servent à former des boucles du fil de peluche immédiatement après son amenée, caractérisé par le fait que l'arête de cueillage est conçue sous forme d'une arête de formation des peluches (4e, 41e) pour former les boucles de peluche au cours du mouvement d'abattage, par le fait que l'arête de précueillage (4f; 41f) est réalisée sur une platine d'une seule pièce (4, 41) avec l'arête de formation des peluches (4e, 41e) et l'arête d'abattage (4d, 41d), et
par le fait que la seconde platine est conçue en tant que platine de jetée du fil (5) avec une arête (5b) de jetée du fil qui, par son mouvement, insère le fil de peluche dans le crochet d'une aiguille lorsque ce crochet dépasse au-dessus de l'arête de précueillage (4f, 41f).
EP88109690A 1987-06-19 1988-06-16 Procédé de fabrication d'une étoffe peluchée à dessin et métier à tricoter circulaire à plusieurs systèmes pour sa mise en oeuvre Expired - Lifetime EP0295703B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
AT155887 1987-06-19
AT1558/87 1987-06-19

Publications (3)

Publication Number Publication Date
EP0295703A2 EP0295703A2 (fr) 1988-12-21
EP0295703A3 EP0295703A3 (en) 1989-10-18
EP0295703B1 true EP0295703B1 (fr) 1991-02-27

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EP88109690A Expired - Lifetime EP0295703B1 (fr) 1987-06-19 1988-06-16 Procédé de fabrication d'une étoffe peluchée à dessin et métier à tricoter circulaire à plusieurs systèmes pour sa mise en oeuvre

Country Status (5)

Country Link
US (1) US4989421A (fr)
EP (1) EP0295703B1 (fr)
JP (1) JPH01118648A (fr)
DE (1) DE3861827D1 (fr)
ES (1) ES2021412B3 (fr)

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Also Published As

Publication number Publication date
EP0295703A3 (en) 1989-10-18
ES2021412B3 (es) 1991-11-01
EP0295703A2 (fr) 1988-12-21
JPH01118648A (ja) 1989-05-11
US4989421A (en) 1991-02-05
JPH0347344B2 (fr) 1991-07-19
DE3861827D1 (de) 1991-04-04

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