JP2001055651A - Prevention of disengagement of knot of crossing yarn in weft knitted fabric - Google Patents

Abstract

PROBLEM TO BE SOLVED: To prevent the disengagement of knot even in drawing a crossing yarn by tightening a back stitch in a state where a front stitch formed on the starting end or the terminal end of a knitting zone into which the crossing yarn is knitted out is inserted into the back stitch. SOLUTION: A pair of stitches 1, 2 are formed at the starting end or the terminal end, especially at the terminal end, of a knitting zone of a weft knitted fabric, and the stitch 1 which is firstly formed is passed through the stitch 2 which is formed secondly, and subsequently the stitch 2 is tightened to fix the knitting zone side of the stitch 1 by knitting weaves, and the crossing yarn B2-side of the stitch 1 is tighten in the connection to the stitch 2 to form a knotted state. Thus, the pulling of the crossing yarn B2 results only in the strong tightening of the knot to make stitch N2 small, and there is no danger of disengagement.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method for preventing tying and loosening of a jumping yarn in a flat knitted fabric, and more particularly, to an interlaced or partial jacquard having a plurality of knitting areas by a flat knitting machine having a pair of front and rear needle beds. BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an unraveling method for tightly tying and fixing a knitting yarn so as not to be unraveled even when a jumping yarn is pulled at a start end or an end, particularly an end, in a knitting area when knitting a ground.

[0002]

2. Description of the Related Art When knitting an intersier place or a partial jacquard place having a plurality of knitting areas by a flat knitting machine,
In order to prevent the structure from collapsing from the jumping yarns coming out of the start end and the end of each knitting area, it is necessary to perform a yarn breaking treatment on the yarns. No. 188942 is known as the “unraveling method” (hereinafter referred to as “known method”).

[0003] In this known method, a knitting yarn is formed at a knitting start or end portion of a weft knitted fabric (for example, an intersier fabric) in which a jumping yarn can be formed, and then a yarn feeder is moved, and a knitting yarn connected from the stitch to the yarn feeder is formed. Intersects so as to pass under the knitting yarns connected to the opposite side from the same stitch, and supplies the knitting yarn to the needle by moving the yarn feeder in the opposite direction in this intersecting state, and the stitches following the stitch This is a processing technique for suppressing the loosening of the jumping yarn by forming a knot and forming a knot.

[0004] However, the treatment for preventing the jumping yarn from being unraveled by the above-mentioned known method is such that, for example, when a knot is formed at the start end (yarn insertion side) of the intersier ground, the knot is tightened even if the knot is pulled. There is no problem because it acts, but if a knot is formed at the end (the thread take-out side), pulling the yarn end of the knot acts to loosen the knot. There was a risk that the knitted fabric could be unraveled from the part.

[0005]

SUMMARY OF THE INVENTION The present invention has been made in view of the above-mentioned drawbacks of the above-mentioned known methods, and has been made in view of the above-mentioned problems. It is a technical object to provide a revolutionary method of preventing tying and loosening of a jumping thread formed at the end of the ground, which is not released by pulling, is stably firmly tightened and is never released. Things.

Another technical object of the present invention is to provide a method for preventing loosening of a transfer yarn with good productivity which can be processed to prevent unraveling without any modification of a flat knitting machine. It is in.

It is a further technical object of the present invention to provide a practical tying method which can prevent a jumping yarn from being unraveled by a small incoherent knot in a very simple knitting process. .

[0008]

The means adopted by the present inventor to solve the above problems will be described below with reference to the accompanying drawings.

That is, according to the present invention, two stitches 1 and 2 are formed at the start end s or the end end e of the knitting area where the crossover yarn B is set up in the weft knitted fabric N, and of these stitches, the first stitch is formed. The first stitch 1, which is a stitch, is inserted into the second stitch 2, which is a stitch formed later, and the first stitch 2 is tightened in a state where the first stitch 1 is inserted into the second stitch 2, and the first stitch by the second stitch 2 By adopting the tightening operation 1 as a means for solving the problem, the jumping yarn B is prevented from breaking down due to pulling. The flat knitted fabric N targeted by the method of the present invention may be an intersier fabric or a partial jacquard fabric as long as it has a plurality of knitting regions knitted by yarns from different yarn feeders. It may include all weft knitted structures that generate the jumping yarn B approximately.

In the present invention, when the first stitch 1 is inserted into the second stitch 2 and tightened, a knitting yarn operation may be performed as follows. The first stitch is formed as a locking stitch by locking the knitting yarn with a knitting needle that does not hold the stitch, that is, an empty needle, and the subsequent stitch is formed as a locking stitch by locking the knitting yarn with an empty needle. Thereafter, one knitting yarn connected to the yarn feeder in the locking stitch and the other knitting yarn in the locking stitch intersect to form a torsion stitch, and the preceding stitch is inserted into the subsequent stitch ( This corresponds to the third and fourth embodiments described later). When forming the first stitch, the knitting yarn is locked to the empty needle, and once formed into a locked stitch, one of the knitting yarns continuing to the yarn feeder in the locked stitch and the other knitting in the locked stitch are used. While forming a torsion stitch by crossing the yarn, the other subsequent stitch is also formed in the same torsion stitch, and the previously formed locking stitch is inserted into the subsequent torsion stitch (described later). This corresponds to a modification of the second embodiment). The first stitch is formed on the knit stitch, while the second stitch is formed on the twist stitch or knit stitch, and the first stitch (knit stitch) is inserted through the second stitch (twist stitch or knit stitch) (first and later-described stitches). This corresponds to the second embodiment).

[0011]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The specific structure of the present invention will be described below in more detail based on embodiments shown in the accompanying drawings.

Now, the basic concept of the processing for preventing the binding and loosening of the jumping yarn in the present invention can be conceptually shown in FIGS. Figure 1 is a Intashia locations of three knitting area X · Y · Z, shows a cross-over yarn B ₂ generated at the end of the transit yarn B ₁ and knitting area Y that occurs beginning of knitting area Y .

FIG. 2 shows a knot at the end of the knitting area Y for preventing the transfer yarn B _{2 from} unraveling.
At the end of the knitting region Y, the cross stitch B ₂ at the end of the knitting region Y forms two stitches 1 and 2, and the first stitch 1 formed earlier is replaced with the second stitch 2 formed later. And tightening the back stitch 2, the knitting region Y side of the first stitch 1 is fixed by the knitting structure, and the crossover yarn B ₂ side of the first stitch 1 is tightened following the back stitch _2. since being a Kukuyui state, there is no fear that solved only smaller knot tight strongly pulled to the floating yarn B ₂ side.

Thus, the unwrapping of the jumping yarn B _{2 and} the binding N ₂
Can be easily formed by a flat knitting machine. Therefore, a more detailed description will be given with an embodiment as a specific application example of the present invention. Incidentally, in the case of applying the unraveling of the present invention to the starting end of the knitting region, which knot direction loosening and pull the transit yarn B ₁ is formedゝ, by a simple knitting process, resulting knot small bulk There are advantages.

[First Embodiment] A first embodiment of the present invention is described with reference to (1) to (4) of FIG. 3, (1) to (8) of FIG. 4, and FIG.
Is shown in In this case, (1) (2) (3) and (4)
Respectively correspond to (3), (4), (6) and (7) in FIG.
Knitting yarn code K ₁ in the figure is to organize the portion of knitting area X,
Code K ₂ is a knitting yarn for knitting the portions of knitting area Y (for also the second to fourth embodiments, and similar). Incidentally, the first to fourth embodiments are all those subjected to Kukuyui unraveling the end portion in prolongation B ₂ of knitting area Y.

First, as shown in FIG. 4 (2), it is assumed that the process starts from a state in which the needle bed R on the back side and the needle bed F on the front side are in a transfer meeting as shown in FIG. 4 (1). The needle bed R on the back side is racked by 0.5 needle to the left (here, “0.5
A "needle" refers to half the distance between adjacent knitting needles). At this time, the needle bed F on the front side, which is the needle bed on the knitting side, is used.
In the above, knitting is performed up to the final course in the knitting area X, and knitting is performed in the knitting area Y except for the last one course. Then, as shown in (1) in FIG. 3 and allowed knitted by moving the yarn carrier (feeder) C leftward knitting yarn K ₂ from right to left until the knitting needle d. As a result, the final course in the knitting area Y is knitted, and the knitting needles (empty needles) d which do not have the stitches of the back side needle bed R which is the non-knitting side needle bed are knitted, and the knitting yarn K
₂ is locked to form a locked stitch S (see (3) in FIG. 4).
The operation of operating the knitting needle in this manner is hereinafter abbreviated as “empty needle knit”. Then, the knitting needle D of the needle bed F of the front side at the time of formation of the final course is to form a previous stitch (knit stitch) L _10. FIG. 4 shows only the stitches and does not show the yarn carrier (yarn feeder). Further, in FIG. 4, the knit stitch is shown by a horizontally long circular figure (the same applies to FIGS. 6 to 8 showing other embodiments).

[0017] Next, as shown in (2) in FIG. 3, the yarn when the carrier C is inverted shifted to the right to empty needles knitting back side of the knitting needle e in, the locking stitch S of the knitting needle d twist stitch L ₂₀
(See (4) in FIG. 4). Therefore, the needle bed R on the back side is racked to the right by 0.5 stitches, and the knitting needles a.
knitting needles A, B, b, c, d, e, f and front side needle bed F
The C, D, E, and F face each other in a transfer meeting state as shown in (5) of FIG.

Then, as shown in FIG. 3C, the knitting needle D of the front needle bed F is transferred to the knitting needle d of the back needle bed R. At this time, the knitting needle d is retracted after twisting stitch L ₂₀ corresponding to Part eyes is advanced until omission Bella receives engages the previous stitch L ₁₀ of the knitting needle D by advanced again, then, the original Retreat to position. Thus, the destination stitch L ₁₀ is in a state of being inserted into the twist stitch L _20. The tightened twisting stitch L ₂₀ by the knitting needle d is retracted to the original position by locking the previous stitch L _10. Incidentally, it is shown with the double oblong shapes the insertion state into the twisting stitch L ₂₀ previously stitch L ₁₀ in (6) in FIG. 4 in the knitting needle d.

[0019] Next, inserted through the twist stitch L ₂₀ has been previously stitch L
₁₀ is transferred from the knitting needle d of the back side needle bed R to the knitting needle D of the front side needle bed F as shown in (4) of FIG. 3 and (7) of FIG. In this state, the knitting needle e is Kukuyui unraveling of transit yarn B ₂ paying locking stitch S as shown in (8) in FIG. 4 is completed. Incidentally, FIG. 5 is a diagram showing an Kukuyui state of the transit yarn B ₂ formed by the first embodiment.

[Second Embodiment] First, in (1) of FIG. 6, the knitting needles a, b, c, d, e, f of the back side needle bed R and the knitting needles A, B and C of the front side needle bed F are shown. B, C, D, E and F are in a transfer meeting state. (1) in FIG. 6 shows a state where the knitting by each knitting operation the final course of the knitting area Y to move the yarn carrier (not shown) of the knitting yarn K ₂ to the left. At this time, the front knitting needle D to form a knit stitch L ₁₀ as previously stitch. Next, in FIG. 6 (2), the yarn carrier is turned over and moved to the right, so that the back side knitting needles d and e are moved.
Knitting with empty needles.

Next, move the knitting yarn K ₂ yarn carrier to the left to empty needles knit the back side knitting needles c to. Then, the locking stitches of the back side knitting needles d and e arranged on the right side are twisted stitches as shown in FIG. 6 (3). Thus, the knitting needle d of the back side twist stitch L ₂₀ is a back knitted eyes are formed.

[0022] Then, in the knitting needle D of the front needle bed F as shown in (4) in FIG. 6 of the back side needle bed R knitting d twist stitch L ₂₀ of the previous stitch L formed in the previous Transfer ₁₀ and insert. In this case, the knitting needle d of the pack side, twisting stitch L ₂₀ as in the first embodiment is retracted after advancing until omission Bella, it engages the tip stitch L ₁₀ of the knitting needle D by the advancing again Receive, then retreat to the original position. Thus previous stitch L ₁₀ which is passed through the insertion state into the back side of the knitting needle d of twisting stitch L _20, as shown in (5) in FIG. 6, to the knitting needle D of the front side with twist stitch Delivered by transfer.

Next, the twisted stitch of the knitting needle e on the back side is removed as shown in FIG.
To perform yarn discharging of the knitting yarn K ₂ as shown in (7) to the left. Thereafter, as shown in FIG. 6 (8), when the locking stitch of the knitting needle c on the back side is removed, the tying of the crossover yarn is completed. Incidentally, FIG. 9 is a representation of Kukuyui state of the transit yarn B ₂ formed by the second embodiment. In both the first and second embodiments, the first stitch and the second stitch are formed by knitting needles of different beds, and a knit stitch is formed as a first stitch and a twist stitch is formed as a second stitch. ing. However, the former stitch and the later stitch are formed by the same side bed, for example, the knitting needle of the non-knitting side bed,
In addition, the two stitches can be both twisted stitches.
For example, in the state of (3) in FIG.
Can be used as the first stitch, and the torsion stitch held by the knitting needle d on the back side can be used as the subsequent stitch. Thereafter, in FIG. 6 (3), the back side needle bed R is racked by one stitch to the left, the knit stitch held by the front side knitting needle E is transferred to the back side knitting needle f, and the knitting needle E is emptied. Needle. Then, the needle bed R on the back side is racked to the right by one stitch, and the torsion stitch, which is the stitch held by the knitting needle e on the back side, is transferred to the knitting needle E on the front side. The needle bed R is further racked to the right by one stitch and the torsion stitch held by the knitting needle E on the front side is inserted into the torsion stitch which is the stitch held by the knitting needle d on the back side. Thereafter, the knit stitch held by the knitting needle f on the back side is returned to the knitting needle E on the front side, and the knitting stitch d on the back side is returned.
May be transferred to the knitting needle D on the front side.

[Third Embodiment] First, in (1) of FIG. 7, the knitting needles a, b, c, d, e, f of the back side needle bed R and the knitting needles A, B, C of the front side needle bed F are shown. B, C, D, E and F are in a transfer meeting state. Now, the front needle bed F knitting needle C of the knitting of yarn K ₁ stitch in Such Deai state, in FIG. 7 (2)
As shown in (5), transfer is performed to the knitting needle c of the back side needle bed R.

Next, when is racked by 1.5 stitches bag Gawahariyuka R to the left, as shown in (3) in FIG. 7, the knitting needle c of the back side of the stitch of the knitting yarn K ₁ is transferred eyes Then, the process shifts to the intermediate needle position between the knitting needles A and B on the front side.

Next, as shown in FIG. 7D, the knitting yarn K ₂
Is moved from right to left to knit the final course in the knitting area Y, and knitting needles C on the front side and knitting needles d on the back side needle bed R are used to perform empty needle knitting. In this case the front knitting needle C to form a locking stitch L ₁₀ as previously stitch. And this time the knitting yarn K
Move the yarn carrier No. ₂ to the right, and see (5) in FIG.
As shown in (1), empty needle knitting is performed by the knitting needle e on the back side. This then causes the stitches of the knitting needle d of the back side will form a twist stitch L ₂₀ as Part eyes.

Thereafter, as shown in FIG. 7 (6), the back side needle bed R is entirely racked to the right by 0.5 stitches to the right. Then, as shown in FIG. 7 (7), transfer is performed from the front side knitting needle C to the opposing back side knitting needle d. Then, whereby after the knitting needle d of the back side which gave exit Bella twisted stitch L ₂₀ is a back knitted eyes, the knitting needle d is the previous stitch L ₁₀ of the knitting needle C of the front side insertion state into the twisting stitch L ₂₀ Is transferred to and received.

Then, when the back side needle bed R is racked by one stitch to the right, the knitting needles A, B, C, C, D, E, and F of the front side needle bed F and the back side as shown in FIG. The a, b, c, d, e, and f knitting needles of the side needle bed R face the transfer and meet state.

Next, as shown in FIG. 7 (9), the stitch held by the back side knitting needle c is transferred to the front side knitting needle C facing the meeting state, and the back side knitting needle C is moved. previous stitch L ₁₀ also on the front side at the same time knitting needles D, d held
Transfer to Thereafter, as shown in FIG. 7 (10), the stitch of the knitting needle e on the back side is removed to complete the tying of the crossover yarn.

[Fourth Embodiment] In the knitting process of the method for stopping and tying a jumping yarn according to the fourth embodiment, FIG.
Since the knitting processes shown in (1) to (8) are the same as the knitting process of the third embodiment up to (8) in FIG. 7, the description up to the stage corresponding to (8) in FIG. (1) to (8) in FIG.
8 and (9) to (13) in FIG. 8 will be described.

In the same knitting state as the state shown in FIG. 7 (8), when the transfer is made from the back side knitting needle c to the front side knitting needle C, the state shown in FIG. 8 (9) is obtained.

Then, as shown in FIG. 8 (10), the back side needle bed R is racked by one stitch to the left, and then, as shown in FIG. 8 (11).
As shown in the figure, the first stitch L held by the knitting needle d on the back side
_{10 is} also transferred to the knitting needle C on the front side at the same time. Knitting needle C of this time the front side is held to have stitches forward without causing dropout Bella was receives previous stitch L ₁₀ retreats.

Thereafter, as shown in FIG. 8 (12), the stitches of the back side knitting needle e are removed, and then, as shown in FIG. 8 (13), the back side needle bed R is shifted by one stitch to the right. In this case, the tying of the jumping yarn of the fourth embodiment is completed.

The embodiments of the present invention exemplified with reference to the present specification and the drawings are generally as described above. However, the present invention is not limited to the above-described embodiments, and is not limited to the claims. It goes without saying that various changes are possible within the description.

For example, it is also possible for those skilled in the art to optionally form a knit stitch as a rear stitch in the above-described first and second embodiments and insert a knit stitch before the knit stitch as necessary. It is a selectable knitting operation,
Naturally, it should be said that it belongs to the technical scope of the present invention.

More specifically, the yarn carrier is reversed to the left from the state shown in FIG. 3B of the first embodiment, and at this time, the knitting needle d on the back side performs a knitting operation to form a knit stitch as a rear stitch. I do. Thereafter, the above stitch L ₁₀ held in the knitting needle D of the front side is inserted through the knit stitch of the back side of the knitting needle d, previously stitch knitting needles d of the back side is held L
_It is only necessary to transfer ₁₀ to the knitting needle D on the front side again.

Further, the yarn carrier is reversed to the left from the state shown in FIG. 6 (2) of the second embodiment. At this time, the knitting needle d on the back side holding the locking stitch performs the knitting operation. Then, a knit stitch is formed as a back stitch, and the knitting needle c on the back side is knitted empty. Thereafter, the above stitch L ₁₀ held in the knitting needle D of the front side is inserted through the knit stitch of the back side of the knitting needle d, needle Former stitch L ₁₀ again front of the knitting needle d of the back side is held D It should just transfer to.

As is apparent from the above, the first stitch in the method of the present invention includes a knit stitch, a twist stitch,
And a stitch, and a later stitch includes a knit stitch and a twist stitch, which can be realized by combining any of them, and can be said to belong to the technical scope of the present invention.

[0039]

As described above in detail with reference to the embodiment, in the present invention, two stitches formed at the end of the knitting region where the jumping yarn is set up are skillfully operated.
A tie-up prevention method is adopted in which the first stitch formed earlier is inserted into the second stitch formed later to tighten the second stitch. Therefore, neither the interlaced fabric nor the partial jacquard fabric knitted by applying the present invention is unraveled on the terminal side even if the jumping yarn is pulled, and is stably and firmly fixed to the knitted fabric structure in a tightened state. Product.

Further, as described above, the method of the present invention includes an extremely simple knitting operation, so that the conventional flat knitting machine can be carried out without any modification, and the efficiency and productivity are extremely high. In addition to being excellent, the knots formed to prevent loosening are extremely small clumps, so that they are hardly noticeable and can provide a product which is favorable in terms of design.

As described above, according to the present invention, it is possible to eliminate all of the difficulties pointed out in the conventional unraveling processing technology in a flat knitted fabric, and furthermore, it is possible to carry out with a conventionally known flat knitting machine. Therefore, its industrial utility value is very high.

[Brief description of the drawings]

BRIEF DESCRIPTION OF DRAWINGS FIG. 1 is an explanatory view conceptually showing a transition yarn generated at a start end and an end of a knitting area.

FIG. 2 is an explanatory diagram showing a tying state of a jumping yarn formed at an end of a knitting area.

FIG. 3 is an explanatory diagram showing the operations of the knitting needle and the knitting yarn according to the first embodiment of the present invention sequentially in steps (1) to (4).

FIG. 4 is a process explanatory view showing the processes (1) to (8) of performing the unraveling treatment on the jumping yarn according to the first embodiment of the present invention.

FIG. 5 is an enlarged explanatory view of a tying-up part of a loosening prevention applied to the crossover yarn according to the first embodiment.

FIG. 6 is a process explanatory view showing a second embodiment of the present invention, in which the processes (1) to (8) for performing the unraveling treatment on the jumping yarn are sequentially shown.

FIG. 7 is a process explanatory view showing a process of (1) to (10) for performing the unraveling treatment on the jumping yarn according to the third embodiment of the present invention, in order.

FIG. 8 is a process explanatory view of a fourth embodiment of the present invention, in which the processes (1) to (13) for performing the unraveling process on the crossover yarn are sequentially shown.

Figure 9 is an explanatory diagram showing a Kukuyui state of the transit yarn B ₂ formed by the second embodiment.

[Description of Signs] 1 First stitch (formed first) 2 Last stitch (formed later) B (B ₁ · B ₂ ) Jumping yarn C Yarn carrier F Needle bed on the front side K ₁ · K ₂ knitting yarn N Flat knitted fabric N ₁ · N ₂ knot (knot) R Needle bed on the back side X, Y, Z knitting area

Claims (6)

[Claims] In a flat knitted fabric, two stitches are formed at the beginning or end of a knitting area where a crossover yarn is set up, and among these stitches, a stitch formed earlier is included in a stitch formed later. A method for preventing the knitting of a transfer yarn in a flat knitted fabric, wherein the transfer yarn connected to the stitch is fixed to the ground structure by inserting and tightening a stitch formed later. 2. A stitch, which is a stitch formed earlier,
While the knitting yarn is locked to the empty needle to form a locking stitch,
After the subsequent stitch, which is a stitch formed later, is locked with an empty needle to lock the knitting yarn, a knitting yarn connected to the yarn feeder in the locking stitch and the other knitting yarn in the locking stitch are formed. 2. The method according to claim 1, wherein the knitting yarn is crossed to form a torsion stitch, and the first stitch is inserted into a subsequent stitch. 3. A stitch is formed by locking a knitting yarn with an empty needle when forming the stitch.
While forming one twisted stitch by crossing one of the knitting yarns connected to the yarn feeder in this locked stitch and the other knitting yarn in the same locked stitch, the other subsequent stitch is also formed in the same twisted stitch. 2. The method according to claim 1, wherein the first locking stitch is inserted into the second twist stitch. 4. The method according to claim 1, wherein the stitch is formed on a knit stitch.
2. The knitting of a jumping yarn in a flat knitted fabric according to claim 1, wherein the subsequent stitch is formed as a twist stitch or a knit stitch, and the preceding knit stitch is inserted into the subsequent twist stitch or the knit stitch. Unleash method. 5. A knitting machine including a plurality of knitting areas by a flat knitting machine having a pair of front and rear needle beds, wherein two stitches are formed at a start end or an end in the knitting area. The method according to any one of the preceding aspects, for preventing the tying of the jumping yarn in the flat knitted fabric. 6. When knitting a partial jacquard fabric including a plurality of knitting regions by a flat knitting machine having a pair of front and rear needle beds, two stitches are formed at a starting end or a terminating end in the knitting region. 4. The method according to any one of the items 4 to prevent tying and loosening of a jumping yarn in a flat knitted fabric.