JPH07113177B2 - Three-dimensional structure fabric - Google Patents

Description

Description: TECHNICAL FIELD The present invention relates to a three-dimensional structure woven fabric capable of improving the fiber packing density of the warp group and the weft group in the vertical yarn direction.

[Conventional technology]

Conventionally known as this type of three-dimensional structure woven fabric are Japanese Patent Publication No. 52-39473, Japanese Patent Publication No. 53-4145, and Japanese Patent Publication No. 54-38673.

Figure 3 through Figure 6 shows a conventional structure, the third and fourth diagram multiline a plurality of vertical yarns Z into the conductive hole 2 of the yarn guide plate 1 as _{(I 1, I 2 ...... I} m), a plurality An appropriate tension is applied to the rows (J ₁ , J ₂ ... J _m ) by a tension adjusting device t using a hanging weight, a spring, etc., and the threads are arranged so that the warp threads are arranged between the rows and columns of the vertical thread group 3. The Y and weft X are sequentially inserted at right angles to each other and woven in the vertical yarn direction, and the warp yarn Y and the weft yarn X entwined with the selvage yarns e ₁ and e ₂ are pulled by an appropriate tension at an arbitrary point in the weaving process to pull up the vertical yarn group 3 And draws it toward the center to make the cross-sectional dimension in the direction perpendicular to the vertical thread group 3 direction substantially smaller than the arrangement dimension of the through holes 2 of the thread guide plate 1 to increase the fiber packing density of the vertical thread group 3. , Warp Y and weft X are tightened in a weaving direction which is the vertical yarn Z direction with a reed (not shown) at any time during the weaving process, and Figure 5 while increasing the weaving direction of the fiber filled density of the weft X group, in which to obtain a three-dimensional fabric structure of Figure 6.

[Problems to be solved by the invention]

However, in the case of the above conventional structure, when the warp yarns Y and the weft yarns X are pulled in order to increase the fiber packing density of the vertical yarn group 3, the vertical yarn group 3 has a force to return to the arrangement position dimension of the conduction holes 2 of the yarn guide plate 1. Occurs especially near the corners of the vertical thread group 3, and as a result, as shown in FIG. 5, the Z ₁₁ -Z ₁₂ spacing and the Z ₁₁ -Z ₂₁ spacing of the vertical threads located near the corners of the vertical thread group 3 are at the center. Is smaller than the spacing between the vertical threads Z ₁₅ -Z ₁₆ and Z ₅₁ -Z ₆₁ located in the area, that is, the vertical thread group 3 is dense near the corner portion C, is coarse in the central portion, and is dense near the corner portion. As a result, a so-called locking phenomenon occurs due to mutual friction between the vertical yarn Z, the warp yarn Y, and the weft yarn X. As a result of this locking phenomenon, the warp yarn Y and the weft yarn X cannot be pulled straight, and the warp yarn Y and the weft yarn X as shown in FIG. Slack occurs, and fabric properties such as strength are impaired Exert, also can not be satisfactorily fastened by the reed by the locking phenomenon, it may not be possible to increase the fiber packing density of the weaving directions.

[Means for solving problems]

The present invention is intended to eliminate these disadvantages, and its gist is to provide warp threads and weft threads at right angles to each other between each row and each column of a vertical thread group in which a plurality of vertical threads are arranged in a plurality of rows and a plurality of columns. In the three-dimensional structure woven fabric inserted into and woven in, the three-dimensional structure woven fabric is formed by excluding an appropriate number of vertical yarns located near the corners of the vertical yarn group.

[Action]

The vertical yarns located near the corners of the vertical yarn group are excluded from the weaving, and the coarse and dense state of the vertical yarns when pulling the warp and weft yarns can be suppressed, and a uniform vertical yarn interval can be obtained. The lock phenomenon due to the yarn is suppressed.

〔Example〕

 1 and 2 show an embodiment of the present invention.

It should be noted that the same mode parts as those of the conventional structure shown in FIGS.

In this embodiment, the six vertical yarns Z ₁₁ , Z ₁₂ , Z ₁₃ , Z ₂₁ , Z located in the vicinity of the corners of the vertical yarn group 3 in FIG.
_22, Z _31, and arranged to exclude, and weaving.

Therefore, when the warp yarn Y and the weft yarn X are pulled, the vertical yarn Z
Can be arranged at even intervals in both the row and column directions, that is, in both the warp and weft directions, and can suppress the state of unevenness of denseness and coarseness, and can suppress the locking phenomenon due to the three-component yarn (X, Y, Z) As a result, the warp yarns Y and the weft yarns X can be arranged in a straight line as shown in FIG. 2, and the tightening by the reed can be performed well, so that a three-dimensional structure woven fabric having a high fiber packing density can be obtained.

In the above embodiment, the vertical threads Z ₁₁ , Z ₁₂ , Z ₁₃ , Z ₂₁ , Z ₂₂ , Z
Weaving is done by excluding 6 vertical threads at ₃₁ corners.
_When only one vertical thread of ₁₁ is excluded or Z ₁₁ , Z ₁₂ , Z ₂₁
When the three vertical yarns are excluded, an appropriate number of vertical yarns are excluded.

〔The invention's effect〕

As described above, when the warp yarn and the weft yarn are pulled, the present invention can be arranged at even intervals in the row and column directions of the vertical yarn, that is, in both the warp and weft directions, and can suppress the state of dense and coarse unevenness. The lock phenomenon due to the three-component yarn can be suppressed, the warp yarns and the weft yarns can be arranged in a straight line, and the tightening by the reed can be performed well, so that a three-dimensional structure woven fabric having a high fiber packing density is obtained.

As described above, the intended purpose can be sufficiently achieved.

[Brief description of drawings]

The drawings show one embodiment of the present invention. Fig. 1 is a front view, Fig. 2 is a side view, Fig. 3 is a perspective view of a conventional structure for weaving, and Fig. 4 is a plan view thereof. The figure is its side view, and FIG. 6 is its side view. X: weft, Y: warp, Z: vertical thread, 3 ... vertical thread group.

 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor Akashi Arahara 2-chome Toyota-cho, Kariya city, Aichi Prefecture Toyota Industries Corporation (72) Inventor Yoshiharu Yasui 2-chome Toyota-cho, Kariya city, Aichi prefecture Stock company Toyota Automatic Loom Works (72) Inventor Masahiko Kanehara 2-chome Toyota Town, Kariya City, Aichi Stock Company Toyota Automatic Loom Works (72) Inventor Hiroshi Omori 2-chome Toyota Town, Kariya City, Aichi Prefecture Stock company, Toyota Industries Corporation (72) Inventor, Makoto Tsuzuki, 2-chome, Toyota Town, Kariya city, Aichi Stock company, Toyota Industries Corporation (56) Reference JP 62-133170 (JP, A) Special Kai 57-13955 (JP, A) JP 52-39473 (JP, B2)

Claims (1)

[Claims] 1. A three-dimensional structure fabric woven by inserting warp yarns and weft yarns at right angles between each row and each column of a vertical yarn group in which a plurality of vertical yarns are arranged in a plurality of rows and a plurality of columns. A three-dimensional structure woven fabric, wherein an appropriate number of vertical yarns located near the corners of the yarn group are excluded and woven.