JP2014198031A - Laver net with knot and sewing method thereof - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a laver net with knots having durability at the sewed part connecting an edge rope and a half stitch rope, having flexibility as an integrated net, and having excellent producibility, the durability and flexibility being required as a laver net to be used for laver culture, and to provide a sewing method thereof.SOLUTION: To provide a laver net in which a half stitch rope of a knitted net with knots is sewed to an edge rope, the half stitch rope of the net being machine-sewed to the edge rope in a sewing pattern that is a combination of a zigzag stitching, a line stitching, and a rolled stitching with respect to the half stitch rope, and to provide a sewing method of the net.

Description

  TECHNICAL FIELD The present invention relates to a knotted nori net obtained by sewing half-threads of a knotted knotted net used for nori culture to an ear rope and a sewing method thereof.

  A nodule nori net is composed of an ossicle that forms the entire outer frame of the net, and a net of the knotted net inside it. The outer two sides) are called half-threads. As a manufacturing procedure of the knot nori net, a net and an ear rope are separately prepared, and a half-mesh thread is sewn on the ear rope to make an integral net.

  And when the laver net is used for laver culture, the laver net will be installed in the sea area for several months during the cultivation period with the laver leaves attached to the net part etc. In particular, the load on the sewn portion of the selvage and half-eye thread is multidirectional and high, and a highly durable laver net is strongly desired at the sewn portion of the lacuna and half-mesh thread.

  Moreover, in the laver net used for laver culture, in addition to strength and durability, important properties required include flexibility as an integral net. Without this flexibility, the handling of the aquaculture work is poor, and the load caused by the waves cannot be carried over, causing not only the breaking of the net but also the separation of the natural seawater flow, so the laver growth is worsened I will let you.

As a conventional technique, Patent Document 1 proposes assembling an edge rope to both edge portions of a net body. However, in this technique, since the twisted yarn at the edge of the mesh is simply passed through the edge rope, the durability of the joint portion is insufficient as a laver mesh.
For the purpose of improving the durability of Patent Document 1, Patent Document 2 proposes a net that is knitted through a strand that forms a net body while intersecting with a strand that forms an edge rope. However, it leads to a decrease in net manufacturing efficiency due to the complication of the knitted net structure, and the durability of the joint portion is still not sufficient.
Further, Patent Document 3 proposes a method for bundling a spliced yarn and a fishing net with a spliced yarn capable of binding the spliced yarn to a net to improve net production efficiency. However, this technique is a state where the netting is fixed at multiple points because it is sewed so as to be wound with a sewing thread on the splicing thread, so that it is an integral net required for laver netting applications. It did not satisfy flexibility.

Japanese Utility Model Publication No.59-24792 (Scope of Claim for Utility Model Registration) JP-A-6-319411 (Claims etc.) Japanese Unexamined Patent Publication No. 2000-279672 (Claims etc.)

  The present invention is to solve this problem in view of the above-mentioned conventional problems and the present situation, and is intended to solve the problems of durability and integrality at the sewn portion of the ear cord and the half-eye thread required as a laver net used for nori culture. The object is to provide a knotted nori mesh that has flexibility as a net and has high net production efficiency, and a sewing method thereof.

  As a result of intensive studies to solve the above-described conventional problems and the present situation, the present inventors have adopted a sewing pattern that combines staggered stitching, wire stitching, and wound stitching for half-eye stitches, and thus, the ear cord and the half-eye stitches. It is unexpectedly discovered that the strength of the seam can be improved without losing the flexibility of the seam, and that the workability of laver net production will not be reduced. The present invention (a knotted nori mesh and its sewing method) has been completed with the addition of durability at the sewing portion of the thread and flexibility as an integral net.

That is, the present invention resides in the following (1) to (8).
(1) In a laver net in which a half-thread of a knotted knotted net is sewn to the ear rope, the half-yarn of the net is stitched to the ear rope, a staggered stitch, a line stitch, and a wound stitch to the half stitch A knotted seaweed net that is sewn with a sewing pattern that combines
(2) The wound stitch of the sewing pattern that combines the zigzag stitching, the line stitching and the winding stitching for the half-eye thread has three continuous needle drop points, and the needle drop point is located alongside the ear cord and the half-eye thread, The knot laver net according to (1), which is made in the order of the opposite side of the half-mesh yarn.
(3) The half stitch is composed of two sides of the same rhombus, and the winding stitching with respect to the half stitch is performed independently on each side of the half stitch, according to (1) or (2) Nobulous nori net.
(4) The knotted seaweed net according to any one of (1) to (3), wherein the number of windings is 3 to 8 per stitching in the half stitch thread. .
(5) Using a sewing machine programmed with a sewing pattern that combines zigzag stitching, line stitching and winding stitches for half stitches in the method of sewing the half stitches of the knotted knotted net to the ear rope A knotted nori net of the knot, characterized by sewing the mesh half-yarn to the ear rope with the sewing pattern, and sewing the mesh half-yarn to the ear leash by the sewing machine. Sewing method.
(6) The zigzag stitching, line stitching, and half-eye stitching, which incorporates the action of winding stitching that causes needle dropping in order in succession at the three points of the ear rope, the half-eye thread, and the opposite side of the half-eye thread in order. A sewing method for a knotted laver net according to (5), characterized in that a sewing machine in which a sewing pattern is combined with a seam winding is used.
(7) The winding stitching operation for the half stitches is performed independently for each side of the half stitch consisting of two sides of the same rhombus, according to (5) or (6) Sewing method of knotted nori mesh.
(8) The stitching operation of the half-eye thread is wound 3 to 8 times per one place of sewing, (5) to (7) The knotted seaweed net stitch according to any one of (5) to (7) How to wear.

  According to the present invention, a knot laver net having high net production efficiency, having both durability at the sewn portion of the lacuna and half-mesh thread required as a laver net for laver culture and flexibility as an integral net And a sewing method thereof.

FIG. 5 is a perspective view showing an example of the positional relationship between the half-eye thread and the ear rope when the seaweed net with knots of the present invention is sewn with a laver-fastening sewing machine. It is the figure which looked at FIG. 1 from the front. (A)-(e) is the top view which showed each example of the needle drop pattern shape of a seaweed tackling sewing machine. It is a figure which shows the half eye thread and the ear rope which were sewn by the sewing pattern which combined the staggered stitch which is the sewing of one Embodiment of this invention, a line stitch, and the winding stitch with respect to the half stitch thread. It is a figure which shows the half eye thread and the ear rope which were sewn by the sewing pattern which combined the zigzag stitch which is sewing of one Embodiment of this invention, a line stitch, and the independent winding stitch | suture with respect to each side of a half stitch thread.

Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings.
The present invention relates to a laver net in which a half-yarn of a knotted knotted net is sewn to an ear rope, and the half-yarn of the net is wound around the ear leash to a staggered stitch, a wire stitch and a half-yarn thread. Uses a knotted seaweed net that is sewn with a sewing pattern that combines stitches, and a sewing machine that is programmed with a sewing pattern that combines staggered stitches, line stitches and wound stitches for half-eye threads A knotted nori net of the knot, characterized by sewing the mesh half-yarn to the ear rope with the sewing pattern, and sewing the mesh half-yarn to the ear leash by the sewing machine. Sewing method.

  As an effect of the present invention, when sewing two half stitch yarns that are two sides of the same rhombus of a knitted knotted net at the same time to one place of the ear rope, a certain fixed thread is used. Since the sewing is performed with the automatic sewing pattern and this operation is repeated in the longitudinal direction of the net, a complicated work process is not required and the production efficiency is not lowered. And while performing such a simple sewing operation, the knot laver net of the present invention employs a sewing pattern that combines staggered stitches, line stitches and wound stitches for half-threads, which are essential components. It is possible to improve the strength without losing the flexibility of the sewn portion of the ear rope and the half-eye thread, and the properties required for the laver net (durability at the sewn portion of the ear rope and the half-eye thread and the integral mesh) It is considered that the flexibility of the above can be added.

Sewing according to the present invention means that when the knot net and the ossicles of the knot net produced separately are tailored as a single net, the half-mesh thread and the selvage of the net are sewn and joined with a seaweed braid sewing machine. Since the half-threads form two sides of the same rhombus, one set of the two sides is sewn to the same sewing location, and usually per laver net (width 2m, length 20m) Approximately 90 (80 to 100) places are formed on the mesh piece side, and about 180 (160 to 200 places) sewing points are formed on both ends of the mesh.
FIG. 1 is a perspective view as an example when sewing a half-eye thread and an ear rope with a seaweed tackle sewing machine, and FIG. 2 is a front view of FIG. Place the half-thread and the ear rope on the lower plate B in the form of passing through the ear rope C, and fix it with the presser member A from above and perform sewing work using the sewing needle E.

  The sewing pattern according to the present invention can be automatically executed by programming the shape pattern in the seaweed netting sewing machine in order to set the sewing shape of the sewing. The sewing pattern of the present invention employs a program in which winding stitches for the half-eye thread are essentially incorporated.

  The zigzag stitching of the present invention is also called zigzag tacking, and has a needle drop shape as shown in FIG. 3 (a), and is sewn in a zigzag shape (5 to 15 reciprocations) in the longitudinal direction of the ear cord. The half-eye thread is sewn to the ear rope and usually has a sewing width of 1 to 4 mm and a sewing length of 10 to 25 mm.

  The wire stitching of the present invention is also called wire tacking, and has a needle drop shape as shown in FIG. 3 (b), and has a sewing stitch in a zigzag shape toward the transverse direction (short-hand method) of the ear cord (1 to 2). The half-eye thread is sewn to the ear rope while being reciprocated three times, and usually has a sewing width of 10 to 25 mm and a sewing length of 0.1 to 0.5 mm.

  The wound seam for the half-eye thread of the present invention is a needle drop shape as shown in FIG. 3 (c), and the half-eye thread is sewn to the ear rope while the half-eye thread is wound with the sewing thread.

  With respect to the operation of the sewing needle for winding stitches with the half stitch thread according to the present invention, in terms of improving the breaking strength, the ear rope (needle drop point 1), the side of the half stitch thread (needle drop point 2), the opposite side of the half stitch thread. Side-by-side (needle drop point 3) winding and stitching repetitive movements such that the needle drop continues in sequence [needle drop point 1 → 2 → 3 → 1] is preferably incorporated, and the direction of the repetitive motion (the needle movement line that draws a triangle) changes alternately (needle drop points 1 → 2 → 3 → 1 → 3 → 2). (Return to 1) is particularly preferable. And it is preferable from the point of preventing the yarn breakage that the needle drop points are shifted by an interval of 0.5 to 1.0 mm and do not overlap the same point (needle drop points 1 → 2 → 3 → 4).

The zigzag stitching of the present invention, the combination of line stitching and winding stitching for half-eye thread, is a needle drop shape as shown in FIG. It is preferable to carry out in the order of “line stitching, wound stitching with respect to the half-eye thread, and staggered stitching” from the viewpoint that there is no fraying of the thread and the tacking is stable. In addition, since it is possible to sew with excellent flexibility, it has a needle drop shape as shown in FIG. It is particularly preferred to independently wrap and sew.
The combined number of times of winding and suturing (per one sewing place) is preferably 3 to 8 times as a condition combining strength, flexibility and workability, and 4 to 6 times in terms of further excellent strength. Is particularly preferred.

  The knot net of the knot used in the present invention is not particularly limited. For example, vinylon, nylon, polyethylene, polypropylene and polyester fibers used as the raw yarn are twisted with a doubler, and the twisted yarn is knitted. It is manufactured over.

The ear rope used in the present invention is not particularly limited, and is produced, for example, by subjecting vinylon, nylon, polyethylene, polypropylene, and polyester fibers serving as raw yarns to a rare machine, and then twisting and twisting the fibers.

  The sewing thread used for the sewing machine of the present invention is not particularly limited. For example, the raw thread can be vinylon or tetron fiber, and tetron is preferred in terms of weather resistance and tensile strength.

  Next, the present invention will be described in more detail with reference to test examples (Examples and Comparative Examples).

[Test Example 1: Examples 1 to 8 and Comparative Examples 1 to 3]
Using netting, ear rope and sewing thread (Tetoron 10th or Tetoron 8th), perform sewing sewing (LK-1900A made by JUKI, sewing speed 2,000, thread tension 50) according to the sewing conditions shown in Table 1. Sewing samples of Examples 1 to 8 and Comparative Examples 1 to 3 were prepared, and a break test, a softness test, and workability evaluation were performed by the following methods.

[Break test] Set (one each) one ear rope and one half stitch thread of the same sewn part to the fixture (two sets of one set) of the strength tester (AG-1 manufactured by Shimadzu Corporation), The maximum point strength (kgf) when the sewn portion was torn by operating the fixture to open was measured. This measurement operation was carried out at 10 sewn portions of the same seaweed net, and 8 measured values excluding the minimum and maximum measured values were averaged to obtain the breaking strength.

[Flexibility test] One stitch and one half-eye thread at the same sewn part are seized with one hand and the other hand, and the hand on the half-eye thread side is moved in the left, right, up, down, and circle to sew. Sensory evaluation of the softness of the part was made by comparison with the conventional conditions (Comparative Example 1) (Evaluation criteria: ◎ "More flexible than conventional", 〇 "Flexible equivalent to conventional", △ "Flexible slightly less than conventional) ”, ד less flexible than conventional ”).

[Evaluation of workability] The time required to sew the ear rope and the half-eye thread with a sewing machine was measured and evaluated by comparison with the conventional conditions (comparative example 1: 3 seconds of sewing time per place) (Evaluation criteria) ◎ “short time than conventional”, ○ “time equivalent to conventional”, Δ “time longer than conventional one”, × “time longer than conventional two”).
These results are shown in Table 1.

  As is clear from the results in Table 1 above, using the 10th Tetoron sewing thread, the conventional stitch pattern, zigzag stitching, and line stitching are reciprocated to double the number of stitches (from Comparative Example 1 of the conventional condition). In the increased Comparative Example 2, the breaking strength was only slightly increased (15% increase) from the conventional condition, and the flexibility and workability were also decreased.

  On the other hand, the stitching pattern of the stitching pattern in which the zigzag stitching, the line stitching, and the winding stitching with respect to the half stitch thread of Examples 1 to 7 had a breaking strength increased by 30% or more than the conventional condition. And it turned out that the improvement of breaking strength is remarkable in the sewing samples of Examples 2 to 5 having 3 to 8 windings without causing deterioration in flexibility and workability (from conventional conditions). 56-90% increase). In addition, as in Examples 3 to 6, when winding and stitching is independently performed on each side (each one) of the half stitch yarn composed of two sides of the same rhombus, the sewing has superior flexibility than the conventional conditions. It turned out to be possible to wear.

Further, when the number of winding stitches at one place of sewing is increased to 10 times and 12 times (Examples 6 and 7), not only the workability is lowered, but also the flexibility and the breaking strength tend to decrease. It was.
The effect of the above-described sewing method of the present invention could be confirmed in the same way (Comparative Example 3 and Example 8) of the sewing samples in which the sewing thread was thick (Tetron 8th).

[Test Example 2: Examples 9 and 10 and Comparative Example 4]
Using a net, an ear rope and a sewing thread (Tetron 10th), sewing machine sewing (JUKI LK-1900A, sewing speed 2,000, thread tension 50) according to each sewing condition shown in Table 2, Example 9, No. 10 and Comparative Example 4 nori net (each made 1 piece, sewing location 92 × 2 per piece), and field test (2 months aquaculture test) at nori culture fishing ground (sea area), A survey was carried out on the sewn condition of the netting half-mesh thread and the ear rope and the evaluation of the growth of nori.

The survey of the sewing situation was carried out by visually counting the number of sewn parts where one piece of laver net was broken (sewing thread loosening, sewing thread breakage and half-thread breakage) after completion of the field test, and the breaking rate was obtained. Moreover, the growth evaluation of the laver was judged by visually comparing the laver leaf body length during the field test with the laver net of the conventional conditions (Comparative Example 4).
These results are shown in Table 2.

  As is clear from the results in Table 2 above, a prototype laver net of a sewing pattern combining the staggered stitch, the line stitch, and the wound stitch (number of windings: 3 and 4) of Examples (9 and 10), The seaweed mesh was sewn better than the conventional prototype nori mesh (Comparative Example 4). In addition, the trial laver net (Example 10) in which each side (each one) of the half stitches composed of two sides of the same rhombus is independently wound and stitched has a good influence on the growth of the laver. It has been found.

  The present invention has a knotted nori net with high net production efficiency, having durability at the sewn portion of the lacuna and half-mesh thread required as a laver net for laver culture and flexibility as an integral net It is possible to provide a sewing method.

A Sewing machine holding member B Bottom plate of sewing machine C Ear rope D Half stitch E Sewing needle 1 Needle drop point 1
2 Needle entry point 2
3 Needle entry point 3
4 Needle entry point 4

Claims (8)

  In a laver net in which a half-thread of a knotted knotted net is sewn to the ear rope, the half-yarn of the net combines the ear rope with a staggered stitch, a line stitch, and a wound stitch for the half-yarn A knotted nori net, characterized by being sewn in a sewing pattern.   The winding stitch of the sewing pattern combining the zigzag stitching, the line stitching, and the winding stitching for the half-eye thread has three consecutive needle drop points, the needle drop points beside the ear cord, the half-eye thread, and the half-thread thread. The knot laver net according to claim 1, wherein the nodule net is arranged in the order of the opposite side.   3. The knot laver according to claim 1 or 2, wherein the half stitch yarn is composed of two sides of the same rhombus, and winding stitches to the half stitch yarn are independently applied to each side of the half stitch yarn. network.   The knot laver net according to any one of claims 1 to 3, wherein the number of windings is 3 to 8 per sewn place in the half stitch thread.   In a method for sewing a half stitch thread of a knotted knotted net to an ear rope, using a sewing machine programmed with a stitch pattern combining a staggered stitch, a line stitch and a wound stitch for a half stitch, A method for sewing a knotted nori mesh, comprising: sewing the mesh half-thread on the ear rope with the sewing pattern, and sewing the mesh half-thread on the ear rope by the sewing machine. .   The zigzag stitching, wire stitching, and winding stitching for the half-eye thread, which incorporates the action of winding stitches such that the needle drop is successively performed at the three points of the ear rope, the half-eye thread, and the opposite side of the half-eye thread in order. 6. The method for sewing a knotted seaweed net according to claim 5, wherein a sewing machine in which a sewing pattern is combined is used.   7. The knot laver net according to claim 5 or 6, wherein the operation of winding and stitching with respect to the half stitch is performed independently on each side of the half stitch consisting of two sides of the same rhombus. Sewing method.   The method for sewing a knotted seaweed net according to any one of claims 5 to 7, wherein the operation of winding and stitching the half-thread is wound 3 to 8 times per sewing place.