Fabric product, and manufacturing method of fabric product

Abstract

To make it possible to realize excellent heat insulation property, easy manufacturing, and weight reduction.SOLUTION: A fabric product 1 is configured by layering a first fabric part 11, a second fabric part 12 and a third fabric part 13 which extend in a first direction D1 and a second direction D2 in a third direction D3. The fabric product 1 is provided with a first straight sewn part 14 where a first fabric part 11 and a second fabric part 12 are sewn together and which extends in the first direction D1. Between the first fabric part 11 and the second fabric part 12, a first internal space S1 and a second internal space S2 that are located on both sides in the second direction D2 when seen from the first straight sewn part 14 are formed. Between the second fabric part 12 and the third fabric part 13, a third internal space S3 located opposite the first fabric part 11 when seen from the second fabric part 12 is formed. The first straight sewn part 14 overlaps the third internal space S3 when seen from the third direction D3.SELECTED DRAWING: Figure 2

Description

[Technical field]

[0001] The present disclosure relates to fabric products and methods of making fabric products. [Background technology]

[0002] Registered Utility Model Publication No. 3216174 describes a multi-layered futon comprising a first fabric, a second fabric, and a third fabric that are layered on top of each other. The first fabric is a top fabric, the second fabric is a middle fabric, and the third fabric is a lining fabric. A first material is disposed between the first and second fabrics, and a second material is disposed between the second and third fabrics. The first fabric is joined to the second fabric by a three-dimensional quilt, and the third fabric is joined to the second fabric by a sewn quilt. The three-dimensional quilt includes a first gusset sewn to the underside of the first fabric and a second gusset sewn to the top of the second fabric. The second gusset is pre-cut and stands up from the second fabric.

[0003] In the manufacturing method of this multi-layered futon, first, a gusset tape is attached to the upper surface of the second fabric. The gusset tape is sewn in a lattice pattern, and this gusset tape forms the second gusset. Similarly, a gusset tape is sewn to the lower surface of the first fabric, and this gusset tape forms the first gusset. Next, a second material is placed between the second fabric and the third fabric, and a sewn quilt is formed with the second fabric, the second material, and the third fabric overlapping each other. Then, the first gusset on the first fabric and the second gusset on the second fabric are sewn together, and the periphery of the first fabric, the second fabric, and the third fabric are sewn. After that, the first material is filled between the first fabric and the second fabric, and the multi-layered futon is completed. [Prior art documents] [Patent documents]

[0004] [Patent Document 1] Registered Utility Model No. 3216174 Summary of the Invention [Problem to be solved by the invention]

[0005] In the multi-layered futon described above, the first fabric is connected to the second fabric via a three-dimensional quilt. When a three-dimensional quilt is used in this way, the fabric product can be made thicker, which has the advantage of improving heat retention. However, when the first fabric and the second fabric are connected to each other via a three-dimensional quilt, which is another fabric part, as in the multi-layered futon described above, the fabric product is currently heavy due to the weight of the three-dimensional quilt.

[0006] This three-dimensional quilt includes a first gusset, which is a gusset tape attached to the underside of a first fabric, and a second gusset, which is a gusset tape attached to the upper surface of a second fabric. Therefore, since it is necessary to attach the gusset tape to the underside of the first fabric and then attach the gusset tape to the upper surface of the second fabric, the current situation is that it takes time and cost to manufacture.

[0007] An object of the present disclosure is to provide a fabric product that has good heat retention, can be easily manufactured, and can achieve lightweight construction, and a method for manufacturing the fabric product. [Means for solving the problem]

[0008] The fabric product according to the present disclosure is a fabric product configured by overlapping a first fabric portion, a second fabric portion, and a third fabric portion extending in a first direction and a second direction intersecting the first direction in a third direction intersecting both the first direction and the second direction. The fabric product includes a first straight stitch portion extending in the first direction, which is a portion where the first fabric portion and the second fabric portion are sewn together. A first internal space and a second internal space are formed between the first fabric portion and the second fabric portion, respectively located on both sides in the second direction as viewed from the first straight stitch portion. A third internal space is formed between the second fabric portion and the third fabric portion, located on the opposite side of the first fabric portion as viewed from the second fabric portion. When viewed from the third direction, the first straight stitch portion overlaps with the third internal space.

[0009] In the fabric product according to the present disclosure, a first internal space is formed between the first and second fabric parts overlapped in the third direction, on one side of the first straight stitch part in the second direction, and a second internal space is formed on the other side of the first straight stitch part in the second direction. For example, when the first internal space and the second internal space are filled with contents, the length of the fabric product in the third direction is likely to be smaller in the part where the first straight stitch part is formed than in other parts. In the fabric product according to the present disclosure, the first straight stitch part overlaps with the third internal space when viewed from the third direction, so that the third internal space exhibits a heat insulating function, and as a result, it is possible to suppress the escape of heat from the part where the first straight stitch part is formed. Therefore, it is possible to exhibit high heat retention. In the fabric product according to the present disclosure, the first straight stitch part is formed by sewing the first fabric part and the second fabric part together. Therefore, compared to a fabric product in which the first fabric part and the second fabric part are sewn together through another fabric part such as a three-dimensional quilt, the weight of the fabric product can be reduced by the amount of the three-dimensional quilt. Furthermore, since the first fabric portion and the second fabric portion are directly sewn together, there is no need to sew together the other fabric portions and the first fabric portion, and the other fabric portions and the second fabric portion. This eliminates the need to sew the other fabric portions, making it easier to manufacture the fabric product. As a result, it is possible to achieve good heat retention, easy manufacturing, and light weight.

[0010] The fabric product may further include a second straight stitched portion extending in the first direction, where the second and third fabric portions are sewn together at a position different from the first straight stitched portion when viewed from the third direction. At the second straight stitched portion, the first fabric portion may be sewn together with the second and third fabric portions. In this case, the second straight stitched portion can be formed by sewing the first fabric portion together with the second and third fabric portions, so that the sewing effort can be further reduced and manufacturing efficiency can be further improved.

[0011] The fabric product may further include a second straight stitched portion extending in the first direction, which is a portion where the second fabric portion and the third fabric portion are sewn together at a position different from the first straight stitched portion when viewed from the third direction, and a third straight stitched portion extending in the first direction, which is a portion where the first fabric portion and the second fabric portion are sewn together at a position different from the first straight stitched portion and the second straight stitched portion when viewed from the third direction. In this case, a portion where the first internal space and the third internal space overlap with each other, and a portion where the second internal space and the third internal space overlap with each other are formed, so that the portion where three pieces of fabric are sewn together can be reduced. This can reduce the loss of heat from the portion where the three pieces of fabric are sewn together, thereby further improving heat retention.

[0012] The third straight stitched portion may be formed on the opposite side of the first straight stitched portion as viewed from the second straight stitched portion. In this case, the second straight stitched portion overlaps with the first internal space or the second internal space as viewed from the third direction. Therefore, the area in which the first internal space is formed and the area in which the second internal space is formed can be made wider. Therefore, the first internal space and the second internal space exhibit a heat insulating function, and heat loss can be suppressed. In addition, the lengths of the first internal space, the second internal space, and the third internal space in the second direction can be made closer to uniform. Since each internal space exhibiting a heat insulating function can be uniformly arranged along the second direction, the areas from which heat easily escapes can be reduced. As a result, the heat retention can be further improved.

[0013] The method for manufacturing a fabric product according to the present disclosure includes the steps of: overlapping a first fabric portion, a second fabric portion, and a third fabric portion extending in a first direction and a second direction intersecting the first direction, in a third direction intersecting both the first and second directions to form a laminated fabric portion; sewing the first fabric portion and the second fabric portion together to form a first straight stitch portion extending in the first direction; sewing the second fabric portion and the third fabric portion together on both sides of the first straight stitch portion in the second direction to form a pair of second straight stitch portions extending in the first direction; and forming a portion where the first fabric portion and the second fabric portion are sewn together on both sides of the first straight stitch portion in the second direction. In the step of forming the sewn portion, a first internal space and a second internal space aligned along the second direction are formed between the first fabric portion and the second fabric portion. In the step of forming the second straight stitch portion, a third internal space is formed between the second fabric portion and the third fabric portion.

[0014] In the method for manufacturing a fabric product according to the present disclosure, a second straight stitch is formed on each side of the first straight stitch in the second direction, thereby forming a third internal space between the second fabric part and the third fabric part that are overlapped along the third direction. Thus, as in the fabric product described above, the first straight stitch overlaps with the third internal space when viewed from the third direction, so that it is possible to suppress heat escape from the part where the first straight stitch is formed. In the part where the first internal space and the third internal space overlap with each other, and in the part where the second internal space and the third internal space overlap with each other, it is possible to reduce the part where the three pieces of fabric are sewn together. This reduces heat escape from the part where the three pieces of fabric are sewn together, so that it is possible to improve heat retention. Furthermore, two of the first fabric part, the second fabric part, and the third fabric part are sewn together to form the first straight stitch, the second straight stitch, and the part where the first fabric part and the second fabric part are sewn together. As a result, like the fabric product described above, the fabric product can be made lighter and easier to manufacture than when the fabric parts are sewn together via other fabric parts, such as a three-dimensional quilt.

[0015] In the step of forming the first straight stitched portion, the first straight stitched portion may be formed up to a midway portion in the first direction of the laminated fabric portion. In the step of forming the second straight stitched portion, the second straight stitched portion may be formed up to the midway portion. The method for manufacturing a fabric product may further include a step of filling the first internal space, the second internal space, and the third internal space from the midway portion with contents, and a step of forming a fourth straight stitched portion extending from the midway portion in the opposite direction to the first straight stitched portion and the second straight stitched portion and extending to an end portion in the first direction of the laminated fabric portion after the step of filling with contents. In this case, filling with contents can be easily performed by forming the first straight stitched portion and the second straight stitched portion up to the midway portion and then filling the first internal space, the second internal space, and the third internal space from the midway portion. Effect of the Invention

[0016] According to the present disclosure, it is possible to improve heat retention, easily manufacture the product, and further realize a lightweight product. [Brief description of the drawings]

[0017] [Figure 1] FIG. 1 is a schematic plan view showing a duvet, which is a fabric product according to a first embodiment. [Diagram 2] 2(a) is a cross-sectional view taken along line IIa-IIa in FIG. 1, and FIG. 2(b) is a cross-sectional view taken along line IIb-IIb in FIG. [Diagram 3] FIG. 3 is a schematic plan view showing one step of the method for producing a fabric product according to the first embodiment. [Figure 4] FIG. 4 is a schematic plan view showing a step subsequent to the step shown in FIG. [Diagram 5] FIG. 5 is a schematic plan view showing a step subsequent to the step shown in FIG. [Figure 6] FIG. 6 is a schematic plan view showing a step subsequent to the step shown in FIG. [Figure 7] FIG. 7 is a schematic plan view showing a step subsequent to the step shown in FIG. [Figure 8]FIG. 8 is a diagram showing a down jacket including a fabric product according to the second embodiment. [Figure 9] FIG. 9 is a schematic plan view showing a fabric product according to the second embodiment. [Figure 10] FIG. 10 is a cross-sectional view taken along line XX in FIG. [Figure 11] FIG. 11(a) is a schematic cross-sectional view showing a fabric product according to a modified example of the first embodiment, and FIG. 11(b) is a schematic cross-sectional view showing a fabric product according to a modified example of the second embodiment. [Figure 12] Fig. 12(a) is a front view showing a down jacket including a fabric product according to a modified example of the second embodiment, and Fig. 12(b) is a back view showing a down jacket including a fabric product according to a modified example of the second embodiment. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0018] Hereinafter, an embodiment of the fabric product and the manufacturing method of the fabric product according to the present disclosure will be described with reference to the drawings. In the following description, the same or corresponding elements are given the same reference numerals, and duplicated descriptions will be omitted as appropriate. The drawings may be partially simplified or exaggerated for ease of understanding, and the dimensional ratios and the like are not limited to those shown in the drawings.

[0019] In the present disclosure, a "fabric product" is a product at least partially made of fabric. Examples of fabric products include bedding such as pillows, futons, or comforters, or clothing such as jackets, vests, or coats. Fabric products are textile products made of fibers. Fabric products are used by being placed against the human body, for example. A fabric product 1 according to a first embodiment will be described below. In this embodiment, the fabric product 1 is a duvet.

[0020] FIG. 1 is a schematic plan view showing a down comforter, which is a fabric product 1 according to the first embodiment. As shown in FIG. 1, the fabric product 1 has an overall rectangular shape. The fabric product 1 is used, for example, by being draped over a person's body when sleeping. The fabric product 1 has long sides 1a and 1b extending in the longitudinal direction of the fabric product 1, and short sides 1c and 1d extending in the lateral direction of the fabric product 1. The fabric product 1 has a thickness in a direction (thickness direction) perpendicular to both the longitudinal direction of the fabric product 1 and the lateral direction of the fabric product 1.

[0021] The length of the longitudinal direction of the fabric product 1 is, for example, 140 cm or more and 230 cm or less (210 m as one example). The length of the lateral direction of the fabric product 1 is, for example, 100 cm or more and 230 cm or less (150 cm as one example). Hereinafter, the longitudinal direction of the fabric product 1 is referred to as the first direction D1, the lateral direction of the fabric product 1 is referred to as the second direction D2, and the direction perpendicular to both the first direction D1 and the second direction D2 is referred to as the third direction D3. The third direction D3 is, for example, the vertical direction.

[0022] FIG. 2(a) is a cross-sectional view taken along line IIa-IIa in FIG. 1. As shown in FIG. 1 and FIG. 2(a), the fabric product 1 is configured by overlapping a first fabric portion 11, a second fabric portion 12, and a third fabric portion 13 in a third direction D3. The first fabric portion 11, the second fabric portion 12, and the third fabric portion 13 extend in the first direction D1 and the second direction D2. In this embodiment, the first fabric portion 11, the second fabric portion 12, and the third fabric portion 13 have the same shape and size. Various materials such as cotton, polyester, or rayon can be used as the material of the first fabric portion 11, the second fabric portion 12, and the third fabric portion 13. In this embodiment, the material of the second fabric portion is a thin, lightweight material such as taffeta fabric or nonwoven fabric.

[0023] In this embodiment, the first fabric portion 11, the second fabric portion 12, and the third fabric portion 13 are sewn together at each of the long sides 1a, 1b and each of the short sides 1c, 1d of the fabric product 1.

[0024] The first fabric portion 11 is a fabric that comes into contact with the human body when the fabric product 1 is in use. FIG. 1 shows the surface (first fabric portion 11) of the fabric product 1 that comes into contact with the body. In this case, the first fabric portion 11 is oriented vertically downward. The second fabric portion 12 is an intermediate portion located between the first fabric portion 11 and the third fabric portion 13 in the third direction D3. The third fabric portion 13 is a fabric that is located on the opposite side of the human body from the second fabric portion 12 when the fabric product 1 is in use. In this case, the third fabric portion 13 is oriented vertically upward. However, when the fabric product 1 is in use, the fabric product 1 may be turned upside down so that the third fabric portion 13 comes into contact with the human body. In this case, the first fabric portion 11 is located on the opposite side of the human body from the second fabric portion 12.

[0025] In this embodiment, the fabric product 1 includes a first straight stitched portion 14 and a second straight stitched portion 15. In this specification, the term "straight stitched portion" refers to a portion where a straight stitch has been applied. That is, the term "straight stitched portion" refers to a portion where multiple pieces of fabric are directly sewn together. More specifically, the straight stitched portion is a portion where at least two of the first fabric portion 11, the second fabric portion 12, and the third fabric portion 13 are sewn together, and where no gusset portion (e.g., a three-dimensional quilt) is interposed between the two fabric portions. The "gusset portion" is, for example, a portion where two of the first fabric portion 11, the second fabric portion 12, and the third fabric portion 13 are joined together via another fabric portion. The straight stitched portion is formed, for example, by performing straight stitching with a sewing machine.

[0026] The first straight stitched portion 14 extends along the first direction D1. The first straight stitched portion 14 is a portion where the first fabric portion 11 and the second fabric portion 12 are sewn together. In the first straight stitched portion 14, the third fabric portion 13 is not sewn to the first fabric portion 11 and the second fabric portion 12. When viewed from the third direction D3, the first straight stitched portion 14 overlaps with a third internal space S3, which will be described later. Note that, although the first straight stitched portion 14 is shown by a dashed line in FIG. 1, the first straight stitched portion 14 is visible when the fabric product 1 is viewed from the first fabric portion 11 side. The first straight stitched portion 14 is not visible when the fabric product 1 is viewed from the third fabric portion 13 side.

[0027] The second straight stitched portion 15 extends along the first direction D1 at a position different from the first straight stitched portion 14 when viewed from the third direction D3. The second straight stitched portion 15 is a portion where the second fabric portion 12 and the third fabric portion 13 are sewn together at a position different from the first straight stitched portion 14 when viewed from the third direction D3. In this embodiment, the first fabric portion 11 is sewn together with the second fabric portion 12 and the third fabric portion 13 at the second straight stitched portion 15. That is, the first fabric portion 11, the second fabric portion 12, and the third fabric portion 13 are sewn together at the second straight stitched portion 15. The second straight stitched portion 15 is visible both when the fabric product 1 is viewed from the first fabric portion 11 side and when the fabric product 1 is viewed from the third fabric portion side.

[0028] The fabric product 1 has a plurality of (four, for example) first straight stitched portions 14 and a plurality of (three, for example) second straight stitched portions 15. However, the number of the first straight stitched portions 14 and the second straight stitched portions 15 is not particularly limited. The first straight stitched portions 14 and the second straight stitched portions 15 extend parallel to each other. The length of the first straight stitched portions 14 and the second straight stitched portions 15 is, for example, 133 cm or more and 223 cm or less (203 cm, for example).

[0029] The first straight stitched portion 14 and the second straight stitched portion 15 extend from the short side 1c of the fabric product 1 to a middle portion 21 in the first direction D1 of the first fabric portion 11, the second fabric portion 12, and the third fabric portion 13. The middle portion 21 is a portion that is spaced a predetermined length in the first direction D1 from the end portions (lower end portions in FIG. 1) in the first direction D1 of the first fabric portion 11, the second fabric portion 12, and the third fabric portion 13 that are overlapped in the third direction D3. The predetermined length is, for example, 5 cm or more and 10 cm or less (7 cm, as an example).

[0030] In this embodiment, the first straight stitched portions 14 and the second straight stitched portions 15 are arranged alternately along the second direction D2. The first straight stitched portions 14 and the second straight stitched portions 15 are formed to be equally spaced from each other. The distance between the first straight stitched portion 14 and the second straight stitched portion 15 adjacent to the first straight stitched portion 14 in the second direction D2 is, for example, 12.5 cm or more and 28.8 cm or less (18.8 cm as one example).

[0031] Between the first fabric portion 11 and the second fabric portion 12, a first internal space S1 and a second internal space S2 are formed, which are located on both sides of the first straight stitched portion 14 in the second direction D2. The first internal space S1 is formed on one side of the first straight stitched portion 14 in the second direction D2 (the left side in FIG. 2(a)). The second internal space S2 is formed on the other side of the first straight stitched portion 14 in the second direction D2 (the right side in FIG. 2(a)). The first internal space S1 and the second internal space S2 are separated by the first straight stitched portion 14 so as to be aligned along the second direction D2.

[0032] In this embodiment, the length in the second direction D2 of the first internal space S1 is equal to the length in the second direction D2 of the second internal space S2. However, the length in the second direction D2 of the first internal space S1 and the length in the second direction D2 of the second internal space S2 may be different from each other.

[0033] Between the second fabric portion 12 and the third fabric portion 13, a third internal space S3 is formed, which is located on the opposite side of the first fabric portion 11 as viewed from the second fabric portion 12. In this embodiment, the fabric product 1 has a plurality of third internal spaces S3. The plurality of third internal spaces S3 are aligned in the second direction D2. Two third internal spaces S3 adjacent to each other in the second direction D2 are separated by a second straight stitch portion 15.

[0034] In this embodiment, the third internal space S3 overlaps with the first internal space S1 and the second internal space S2 when viewed from the third direction D3. For example, the length of the third internal space S3 in the second direction D2 is equal to twice the length of the first internal space S1 in the second direction D2. For example, the length of the third internal space S3 in the second direction D2 is equal to twice the length of the second internal space S2 in the second direction D2. However, the length of the third internal space S3 in the second direction D2 can be changed as appropriate.

[0035] In this embodiment, the fabric product 1 has a fourth straight stitched portion 17. The fourth straight stitched portion 17 extends in the first direction D1 from the ends of the first straight stitched portion 14 and the second straight stitched portion 15 in the first direction D1. The fabric product 1 has a fourth straight stitched portion 17 extending on an extension of the first straight stitched portion 14, and a fourth straight stitched portion 17 extending on an extension of the second straight stitched portion 15. The fourth straight stitched portion 17 extends from the middle portion 21 in the opposite direction to the first straight stitched portion 14 and the second straight stitched portion 15. The fourth straight stitched portion 17 extends to the ends of the first cloth portion 11, the second cloth portion 12, and the third cloth portion 13 in the first direction D1 (the short side 1d of the fabric product 1).

[0036] The fourth straight stitched portion 17 is a portion where the first fabric portion 11, the second fabric portion 12, and the third fabric portion 13 are sewn together. In this embodiment, the fabric product 1 has a plurality of fourth straight stitched portions 17 (seven, for example). However, the number of the fourth straight stitched portions 17 is not particularly limited. The plurality of fourth straight stitched portions 17 extend parallel to one another. The length of the fourth straight stitched portion 17 is, for example, 5 cm or more and 10 cm or less (7 cm, for example). The plurality of fourth straight stitched portions 17 are formed so as to be equally spaced from one another. The distance between one fourth straight stitched portion 17 and another fourth straight stitched portion 17 adjacent to the one fourth straight stitched portion 17 in the second direction D2 is, for example, 12.5 cm or more and 28.8 cm or less (18.8 cm, for example).

[0037] The arrangement of the fourth straight stitched portion 17 is not limited to the above-mentioned arrangement. The fourth straight stitched portion 17 may extend in a direction different from the first direction D1 (for example, the second direction D2). The fourth straight stitched portion 17 may be a portion where any two of the first cloth portion 11, the second cloth portion 12, and the third cloth portion 13 are sewn together. The fabric product 1 may not have the fourth straight stitched portion 17. In this case, the first straight stitched portion 14 and the second straight stitched portion 15 may extend, for example, from the short side 1c to the short side 1d.

[0038] 2(b) is a cross-sectional view taken along line IIb-IIb in FIG. 1. A plurality of fourth internal spaces S4 are formed between the first fabric portion 11 and the second fabric portion 12. Two fourth internal spaces S4 adjacent to each other in the second direction D2 are separated by a fourth straight stitch portion 17. A plurality of fifth internal spaces S5 are formed between the second fabric portion 12 and the third fabric portion 13. Two fifth internal spaces S5 adjacent to each other in the second direction D2 are separated by a fourth straight stitch portion 17.

[0039] In this embodiment, the fourth internal space S4 overlaps with the fifth internal space S5 when viewed from the third direction D3. For example, the length in the second direction D2 of the fourth internal space S4 is equal to the length in the second direction D2 of the fifth internal space S5. However, the length in the second direction D2 of the fourth internal space S4 and the length in the second direction D2 of the fifth internal space S5 are not limited to the above example and can be changed as appropriate.

[0040] In this embodiment, the fabric product 1 has a fifth straight stitched portion 18. The fifth straight stitched portion 18 extends in the second direction D2. The fifth straight stitched portion 18 extends from the long side 1a to the long side 1b of the fabric product 1. The fifth straight stitched portion 18 is a portion where the first fabric portion 11, the second fabric portion 12, and the third fabric portion 13 are sewn together.

[0041] The fabric product 1 has a plurality of fifth straight stitched portions 18 (four as an example). However, the number of the fifth straight stitched portions 18 is not particularly limited. The plurality of fifth straight stitched portions 18 extend parallel to one another. The plurality of fifth straight stitched portions 18 are formed so as to be equally spaced from one another. The distance between one fifth straight stitched portion 18 and another fifth straight stitched portion 18 adjacent to the one fifth straight stitched portion 18 in the first direction D1 is, for example, 28 cm or more and 46 cm or less (42 cm as an example). The fifth straight stitched portion 18 intersects with the first straight stitched portion 14 and the second straight stitched portion 15.

[0042] In this embodiment, the multiple fifth straight stitches 18 are all formed at a position closer to the short side 1c than the middle portion 21. That is, the multiple fifth straight stitches 18 are formed between the middle portion 21 and the short side 1c. However, at least one fifth straight stitch 18 may be formed at a position closer to the short side 1d than the middle portion 21 (between the middle portion 21 and the short side 1d). In this case, at least one fifth straight stitch 18 intersects with the fourth straight stitch 17.

[0043] Two first internal spaces S1 adjacent to each other in the first direction D1 are separated by a fifth straight stitch 18. Two second internal spaces S2 adjacent to each other in the first direction D1 are separated by a fifth straight stitch 18. Similarly, two third internal spaces S3 adjacent to each other in the first direction D1 are separated by a fifth straight stitch 18.

[0044] When viewed from the third direction D3, the first straight stitched portion 14, the second straight stitched portion 15, the fourth straight stitched portion 17, and the fifth straight stitched portion 18 are formed in a lattice pattern in the first cloth portion 11. When viewed from the third direction D3, the second straight stitched portion 15, the fourth straight stitched portion 17, and the fifth straight stitched portion 18 are formed in a lattice pattern in the third cloth portion 13. The first straight stitched portion 14 is not formed in the third cloth portion 13.

[0045] In this embodiment, the fabric product 1 includes a content 3. The content 3 is filled in the first internal space S1, the second internal space S2, the third internal space S3, the fourth internal space S4, and the fifth internal space S5. By filling the first internal space S1, the second internal space S2, the third internal space S3, the fourth internal space S4, and the fifth internal space S5 with the content 3, the fabric product 1 has a portion that is higher than the first straight stitched portion 14, the second straight stitched portion 15, the fourth straight stitched portion 17, and the fifth straight stitched portion 18. In this embodiment, the content 3 is feathers. However, the type of the content 3 is not particularly limited. The content 3 may be, for example, polyester wadding, grain wadding, line wadding, wool wadding, or other wadding. The content 3 may be, for example, a blend of these.

[0046] As described above, the first fabric portion 11, the second fabric portion 12, and the third fabric portion 13 are identical in shape and size to one another. When the first internal space S1, the second internal space S2, and the third internal space S3 are in a state in which the contents 3 are contained, the first fabric portion 11, the second fabric portion 12, and the third fabric portion 13 are each curved in the third direction D3 when viewed from the first direction D1.

[0047] Next, a method for manufacturing the fabric product 1 according to the first embodiment will be described. FIG. 3 is a schematic plan view showing one step of the method for manufacturing the fabric product 1 according to the first embodiment. First, the first fabric portion 11, the second fabric portion 12, and the third fabric portion 13 are overlapped in the third direction D3 to form the laminated fabric portion 2 (step of forming the laminated fabric portion). The laminated fabric portion 2 is three pieces of fabric formed by overlapping the second fabric portion 12 on the third fabric portion 13, and the first fabric portion 11 on the second fabric portion 12. The laminated fabric portion 2 has a rectangular shape. The laminated fabric portion 2 has long sides 2a and 2b extending in the first direction D1 and short sides 2c and 2d extending in the second direction D2.

[0048] Next, the first fabric portion 11, the second fabric portion 12, and the third fabric portion 13 are sewn together to form a second straight stitched portion 15 extending in the first direction D1. For example, the second straight stitched portion 15 is formed by sewing the first fabric portion 11, the second fabric portion 12, and the third fabric portion 13 together along a linear portion of the laminated fabric portion 2 where the second straight stitched portion 15 is to be formed. More specifically, the second straight stitched portion 15 is formed from the short side 2c of the laminated fabric portion 2 to a middle portion 21 of the laminated fabric portion 2 in the first direction D1. In this process, the second straight stitched portion 15 is formed in the center of the laminated fabric portion 2 in the second direction D2.

[0049] 4, the first and second fabric portions 11 and 12 are sewn together on both sides of the second straight stitched portion 15 in the second direction D2 to form a pair of first straight stitched portions 14 extending in the first direction D1 (step of forming first straight stitched portions). For example, the first and second fabric portions 11 and 12 are sewn together along a linear portion of the laminated fabric portion 2 where the first straight stitched portion 14 is to be formed, thereby forming the first straight stitched portion 14. In this step, the first straight stitched portion 14 is formed from the short side 2c of the laminated fabric portion 2 to the midway portion 21. At this time, the pair of first straight stitched portions 14 is formed so that the distance between each of the pair of first straight stitched portions 14 and the second straight stitched portion 15 is equal to each other.

[0050] 5, the first fabric portion 11, the second fabric portion 12, and the third fabric portion 13 are sewn together on both sides in the second direction D2 of the pair of first straight stitched portions 14 described above to form a pair of second straight stitched portions 15 extending in the first direction D1 (step of forming second straight stitched portions, step of forming sewn portions). In this step (hereinafter sometimes referred to as the "step of forming second straight stitched portions 15"), the pair of second straight stitched portions 15 is formed from the short side 2c of the laminated fabric portion 2 to the midway portion 21.

[0051] In the process of forming the second straight stitched portion 15, a first internal space S1 and a second internal space S2 are formed between the first fabric portion 11 and the second fabric portion 12, respectively, on both sides of the second direction D2 as viewed from one first straight stitched portion 14 (see FIG. 2(a)). The first internal space S1 and the second internal space S2 are aligned along the second direction D2. In the process of forming the second straight stitched portion 15, a plurality of third internal spaces S3 aligned in the second direction D2 are formed between the second fabric portion 12 and the third fabric portion 13.

[0052] The first fabric portion 11 and the second fabric portion 12 are sewn together on both sides in the second direction D2 of the pair of second straight stitched portions 15 formed in the process of forming the above-mentioned second straight stitched portions 15 to form a pair of first straight stitched portions 14 extending in the first direction D1.

[0053] Next, the first fabric portion 11, the second fabric portion 12, and the third fabric portion 13 are sewn together at the long sides 2a, 2b, and the short side 2c of the laminated fabric portion 2. More specifically, the long side 1a of the fabric product 1 is formed by sewing the first fabric portion 11, the second fabric portion 12, and the third fabric portion 13 together along the long side 2a. The long side 1b of the fabric product 1 is formed by sewing the first fabric portion 11, the second fabric portion 12, and the third fabric portion 13 together along the long side 2b. The short side 1c of the fabric product 1 is formed by sewing the first fabric portion 11, the second fabric portion 12, and the third fabric portion 13 together along the short side 2c. At this time, the first fabric portion 11, the second fabric portion 12, and the third fabric portion 13 are not sewn at the short side 2d.

[0054] 6, the first internal space S1, the second internal space S2, and the third internal space S3 are filled with the contents 3 from the middle portion 21 (step of filling with contents). More specifically, the first internal space S1 and the second internal space S2 are filled with the contents 3 from an opening defined by the first fabric portion 11 and the second fabric portion 12 in the middle portion 21. The third internal space S3 is also filled with the contents 3 from an opening defined by the second fabric portion 12 and the third fabric portion 13 in the middle portion 21.

[0055] Next, the fabric product 1 is pushed by hand from above the first fabric portion 11 or the third fabric portion 13 to move some of the contents 3 filled in the first internal space S1, the second internal space S2, and the third internal space S3 into a space formed on the short side 2d side of the middle portion 21. That is, the contents 3 are moved into a space defined by the middle portion 21, a portion of the middle portion 21 extending from one end of the middle portion 21 in the second direction D2 to the short side 2d, and a portion of the middle portion 21 extending from the other end of the middle portion 21 in the second direction D2 to the short side 2d. In this embodiment, the contents 3 are moved so that the thickness of the fabric product 1 (the length in the third direction D3) is uniform along the first direction D1.

[0056] The spaces formed on the short side 2d side of the midway portion 21 include a first space (a space that becomes the multiple fourth internal spaces S4) formed between the first fabric portion 11 and the second fabric portion 12, and a second space (a space that becomes the multiple fifth internal spaces S5) formed between the second fabric portion 12 and the third fabric portion 13. The first space communicates with the first internal space S1 and the second internal space S2 in the midway portion 21. The second space communicates with the third internal space S3 in the midway portion 21.

[0057] In the process of moving the contents 3 to the spaces (first space and second space) formed on the short side 2d side of the intermediate portion 21, a part of the contents 3 filled in the first internal space S1 and the second internal space S2 is moved to the first space, and a part of the contents 3 filled in the third internal space S3 is moved to the second space.

[0058] Next, a fourth straight stitched portion 17 is formed, which extends from the middle portion 21 in the opposite direction to the first straight stitched portion 14 and the second straight stitched portion 15 and extends from the middle portion 21 to the end portion (short side 2d) of the laminated fabric portion 2 in the first direction D1 (step of forming a fourth straight stitched portion). In this embodiment, the first fabric portion 11, the second fabric portion 12, and the third fabric portion 13 are sewn together to form the fourth straight stitched portion 17. In this step, a plurality of fourth internal spaces S4 aligned along the second direction D2 are formed between the first fabric portion 11 and the second fabric portion 12 (see FIG. 2(b)). In addition, by forming the fourth straight stitched portion 17 along the first direction D1, a plurality of fifth internal spaces S5 aligned along the second direction D2 are formed between the second fabric portion 12 and the third fabric portion 13 (see FIG. 2(b)).

[0059] Next, the thickness of the fabric product 1 is made uniform along the first direction D1 by pressing the fabric product 1 by hand again from above the first fabric portion 11 or the third fabric portion 13. Next, as shown in Fig. 7, fifth straight stitched portions 18 are formed, extending in the second direction D2 from the long side 1a to the long side 1b of the fabric product 1. In this embodiment, four fifth straight stitched portions 18 are formed in this step. In this step, the four fifth straight stitched portions 18 are formed parallel to one another and at equal intervals.

[0060] Next, the first fabric portion 11, the second fabric portion 12, and the third fabric portion 13 are sewn together at the short side 2d of the laminated fabric portion 2 to form the short side 1d of the fabric product 1. Through the above steps, a series of steps in the manufacturing method for the fabric product 1 according to the first embodiment is completed.

[0061] Next, the effects of the fabric product 1 according to this embodiment and the manufacturing method of the fabric product 1 will be described in detail. As shown in FIG. 2(a), in the fabric product 1 according to this embodiment, a first internal space S1 located on one side of the first straight stitched portion 14 in the second direction D2 and a second internal space S2 located on the other side of the first straight stitched portion 14 in the second direction D2 are formed between the first fabric portion 11 and the second fabric portion 12 overlapped in the third direction D3. For example, when the first internal space S1 and the second internal space S2 are filled with contents 3, the length of the fabric product 1 in the third direction D3 is likely to be smaller in the portion where the first straight stitched portion 14 is formed than in other portions. In the fabric product 1 according to the present disclosure, the first straight stitched portion 14 overlaps with the third internal space S3 when viewed from the third direction D3, so that the third internal space S3 exerts a heat insulating function, and as a result, it is possible to suppress the escape of heat from the portion where the first straight stitched portion 14 is formed. Therefore, it is possible to exert high heat retention.

[0062] In the fabric product 1 according to this embodiment, the first fabric portion 11 and the second fabric portion 12 are sewn together to form the first straight stitch portion 14. Therefore, compared to a fabric product in which the first fabric portion 11 and the second fabric portion 12 are sewn together via another fabric portion, such as a three-dimensional quilt, the fabric product 1 can be made lighter by reducing the three-dimensional quilt. In addition, when the second fabric portion 12 is made of taffeta fabric or nonwoven fabric, the material of the second fabric portion 12 can be a lightweight material, so the fabric product 1 can be made lighter. Furthermore, since the first fabric portion 11 and the second fabric portion 12 are sewn together directly, there is no need to sew together the other fabric portion and the first fabric portion 11, and the other fabric portion and the second fabric portion 12, respectively. That is, the other fabric portion can be made unnecessary. Therefore, the labor of sewing the other fabric portion is eliminated, so the fabric product 1 can be easily manufactured. As a result, the fabric product 1 can be easily manufactured while having good heat retention and being easily manufactured, and can be made lighter.

[0063] When the first fabric portion 11 and the second fabric portion 12 are sewn together via another fabric portion, as in the case of a three-dimensional quilt, the manufacturing cost increases by the amount of the other fabric portion required. In addition, sewing a three-dimensional quilt generally requires skilled techniques, and the time required for manufacturing increases. In the fabric product 1 according to this embodiment, the first fabric portion 11 and the second fabric portion 12 are sewn together to form the first straight stitch portion 14, so that the manufacturing cost can be reduced compared to when another fabric portion (such as a three-dimensional quilt) is provided, the fabric product can be easily manufactured without requiring skilled techniques, and the time required for manufacturing can be saved. In this embodiment, the fabric product 1 does not have the other fabric portion, so the above-mentioned effects are even more pronounced.

[0064] In the portion where the straight stitched portion is formed, the length of the fabric product 1 in the third direction D3 (the thickness of the fabric product 1) is likely to be smaller than in other portions. Therefore, in the portion where the straight stitched portion is formed, the fabric product 1 is likely to bend (deform) in the third direction D3. The third fabric portion 13 has the second straight stitched portion 15 formed therein, and the first fabric portion 11 has the first straight stitched portion 14 formed therein in addition to the second straight stitched portion 15. Therefore, the fabric product 1 is more likely to bend toward the first fabric portion 11 side than toward the third fabric portion 13 side as viewed from the second fabric portion 12. In this embodiment, since the first fabric portion 11 contacts the human body when the fabric product 1 is used, when the fabric product 1 (duvet) is draped over the human body, the fabric product 1 is more likely to bend in the third direction D3 (downward) along the body than when the third fabric portion 13 contacts the human body. As a result, the gap formed between the body and the fabric product 1 can be made smaller, and the heat retention can be further improved.

[0065] In addition, in the fabric product 1 according to this embodiment, the sleeping comfort can be changed depending on which of the first fabric portion 11 and the third fabric portion 13 is brought into contact with the body when the fabric product 1 is used. As shown in FIG. 2(a), in the fabric product 1, the number of convex portions that come into contact with the body differs between when the first fabric portion 11 is oriented vertically downward and when the third fabric portion 13 is oriented vertically downward. In the fabric product 1, the number of convex portions that come into contact with the body when the first fabric portion 11 is oriented vertically downward is greater than the number of convex portions that come into contact with the body when the third fabric portion 13 is oriented vertically downward. Therefore, when a user of the fabric product 1 wants more convex portions to contact the body, the user can simply turn the first fabric portion 11 downward, and when a user does not want more convex portions to contact the body, the user can simply turn the third fabric portion 13 downward. In this way, the sleeping comfort when using the fabric product 1 can be changed depending on which of the first fabric portion 11 and the third fabric portion 13 is oriented downward, so that the sleeping comfort can be changed according to the preference of the user of the fabric product 1.

[0066] In this embodiment, the third cloth portion 13 is not sewn to the first cloth portion 11 and the second cloth portion 12 at the first straight stitch portion 14. This allows the length of the third internal space S3 in the second direction D2 to be longer than when the first cloth portion 11, the second cloth portion 12, and the third cloth portion 13 are sewn to one another at the first straight stitch portion 14. As a result, when the third internal space S3 is filled with the contents 3, the third internal space S3 is prevented from expanding excessively in the third direction D3. This allows the fabric product 1 to have a flat shape as a whole, giving it a luxurious impression.

[0067] The fabric product 1 further includes a second straight stitched portion 15 extending in the first direction D1, which is a portion where the second fabric portion 12 and the third fabric portion 13 are sewn together at a position different from the first straight stitched portion 14 when viewed from the third direction D3. At the second straight stitched portion 15, the first fabric portion 11 is sewn together with the second fabric portion 12 and the third fabric portion 13. Since the second straight stitched portion 15 can be formed by sewing together the first fabric portion 11 with the second fabric portion 12 and the third fabric portion 13, the sewing effort can be further reduced and manufacturing efficiency can be further improved.

[0068] In the manufacturing method of the fabric product 1 according to this embodiment, the second straight stitched portion 15 is formed on both sides of the first straight stitched portion 14 in the second direction D2, thereby forming a third internal space S3 between the second fabric portion 12 and the third fabric portion 13 that are overlapped along the third direction D3. Therefore, as with the fabric product 1 described above, the first straight stitched portion 14 overlaps with the third internal space S3 when viewed from the third direction D3, so that it is possible to suppress the escape of heat from the portion where the first straight stitched portion 14 is formed. In the portion where the first internal space S1 and the third internal space S3 overlap each other, and in the portion where the second internal space S2 and the third internal space S3 overlap each other, the portion where the three pieces of fabric are sewn together can be reduced. This reduces the escape of heat from the portion where the three pieces of fabric are sewn together, so that it is possible to improve heat retention.

[0069] Furthermore, at least two of the first fabric portion 11, the second fabric portion 12, and the third fabric portion 13 are sewn together to form the first straight stitch portion 14 and the second straight stitch portion 15. This allows the fabric product 1 to be made lighter in weight than when the fabric portions are sewn together via another fabric portion, such as a three-dimensional quilt, as in the fabric product 1 described above. As described above, when the second fabric portion 12 is made of taffeta fabric or nonwoven fabric, the second fabric portion 12 can be made lighter, and therefore the fabric product 1 can be made lighter. Furthermore, like the fabric product 1 described above, it can be easily manufactured.

[0070] In the step of forming the first straight stitched portion 14, the first straight stitched portion 14 is formed up to a midway portion 21 in the first direction D1 of the laminated fabric portion 2. In the step of forming the second straight stitched portion 15, the second straight stitched portion 15 is formed up to the midway portion 21. The method for manufacturing the fabric product 1 further includes a step of filling the first internal space S1, the second internal space S2, and the third internal space S3 with the contents 3 from the midway portion 21, and a step of forming a fourth straight stitched portion 17, after the step of filling, which extends from the midway portion 21 in the opposite direction to the first straight stitched portion 14 and the second straight stitched portion 15, and extends to an end portion (short side 2d) of the laminated fabric portion 2 in the first direction D1.

[0071] In this case, the first straight stitched portion 14 and the second straight stitched portion 15 are formed up to the intermediate portion 21, and then the contents 3 are filled from the intermediate portion 21 into the first internal space S1, the second internal space S2, and the third internal space S3, so that the contents 3 can be easily filled. For example, when the fabric product 1 is used by draping it over a person's body, the portion between the intermediate portion 21 and the short side 1d is draped over the ends of the body, such as the legs, and therefore has little effect on the heat retention of the body. Therefore, even if the first fabric portion 11, the second fabric portion 12, and the third fabric portion 13 are sewn together to form the fourth straight stitched portion 17, which allows heat to escape easily, the portion where the fourth straight stitched portion 17 is formed is draped over only the ends of the body, so the heat retention of the body is not likely to decrease.

[0072] Next, a fabric product 10 according to a second embodiment will be described. In the following, differences from the first embodiment will be mainly described, and descriptions that overlap with the above description will be omitted as appropriate. FIG. 8 is a diagram showing a down jacket including the fabric product 10 according to the second embodiment. In this embodiment, the fabric product 10 is a part of the down jacket. The fabric product 10 constitutes, for example, a part of the front body and a part of the back body of the down jacket.

[0073] FIG. 9 is a schematic plan view showing a fabric product 10 according to a second embodiment. FIG. 10 is a cross-sectional view taken along line XX in FIG. 9. The fabric product 10 has a rectangular shape. In this embodiment, the fabric product 10 has long sides 10a and 10b extending in the longitudinal direction of the fabric product 10, and short sides 10c and 10d extending in the lateral direction of the fabric product 10. The fabric product 10 has a thickness in a direction (thickness direction) perpendicular to both the longitudinal direction of the fabric product 10 and the lateral direction of the fabric product 10. Hereinafter, the lateral direction of the fabric product 10 is referred to as the first direction A1, the longitudinal direction of the fabric product 10 is referred to as the second direction A2, and the direction perpendicular to both the first direction A1 and the second direction A2 is referred to as the third direction A3. The second direction A2 is, for example, the vertical direction when the fabric product 10 is in use.

[0074] The fabric product 10 is configured by overlapping a first fabric portion 51, a second fabric portion 52, and a third fabric portion 53 in the third direction A3. The first fabric portion 51, the second fabric portion 52, and the third fabric portion 53 extend in the first direction A1 and the second direction A2. In this embodiment, the first fabric portion 51, the second fabric portion 52, and the third fabric portion 53 have the same shape and size as each other. The material of the first fabric portion 51, the second fabric portion 52, and the third fabric portion 53 is, for example, cotton, polyester, rayon, or a regenerated fiber such as cellulose. The first fabric portion 51, the second fabric portion 52, and the third fabric portion 53 may be a blended fabric of cotton and polyester.

[0075] In this embodiment, similarly to the first embodiment, a first fabric portion 51, a second fabric portion 52, and a third fabric portion 53 are sewn together at each of the long sides 10a, 10b and each of the short sides 10c, 10d of the fabric product 10. In this embodiment, the fabric product 10 has a first straight stitched portion 54, a second straight stitched portion 55, and a third straight stitched portion 56.

[0076] The first straight stitched portion 54 extends along the first direction A1. The first straight stitched portion 54 is a portion where the first cloth portion 51 and the second cloth portion 52 are sewn together. In the first straight stitched portion 54, the third cloth portion 53 is not sewn to the first cloth portion 51 and the second cloth portion 52. The first straight stitched portion 54 is formed on one side (lower side in FIG. 9 ) of the center in the second direction A2 of the fabric product 10. When viewed from the third direction A3, the first straight stitched portion 54 overlaps with a third internal space S13, which will be described later.

[0077] The second straight stitched portion 55 extends along the first direction A1 at a position different from the first straight stitched portion 54 when viewed from the third direction A3. The second straight stitched portion 55 is a portion where the second cloth portion 52 and the third cloth portion 53 are sewn together. In this embodiment, the first cloth portion 51 is not sewn to the second cloth portion 52 and the third cloth portion 53 at the second straight stitched portion 55. When viewed from the third direction A3, the second straight stitched portion 55 overlaps with the first internal space S11 or the second internal space S12 described below. Note that, although the second straight stitched portion 55 is shown by a dashed line in FIG. 9, the second straight stitched portion 55 is not visible when the fabric product 10 is viewed from the first cloth portion 51 side.

[0078] In this embodiment, the fabric product 10 has a plurality of (three, for example) second straight stitched portions 55. However, there is no particular limit to the number of second straight stitched portions 55. Of the three second straight stitched portions 55, two second straight stitched portions 55 are formed at adjacent positions on both sides of the first straight stitched portion 54 in the second direction A2.

[0079] The third straight stitched portion 56 extends along the first direction A1 at a position different from the first straight stitched portion 54 and the second straight stitched portion 55 when viewed from the third direction A3. The third straight stitched portion 56 is a portion where the first cloth portion 51 and the second cloth portion 52 are sewn together. In the third straight stitched portion 56, the third cloth portion 53 is not sewn to the first cloth portion 51 and the second cloth portion 52. When viewed from the third direction A3, the third straight stitched portion 56 overlaps with a third internal space S13 described later.

[0080] In this embodiment, the fabric product 10 has a plurality of (for example, two) third straight stitched portions 56. However, there is no particular limit to the number of third straight stitched portions 56. The two third straight stitched portions 56 are formed on either side of the first straight stitched portion 54 in the second direction A2.

[0081] The third straight stitched portion 56 is formed on the opposite side of the first straight stitched portion 54 as viewed from the second straight stitched portion 55. The two third straight stitched portions 56 are formed on both sides of the two second straight stitched portions 55 in the second direction A2.

[0082] Furthermore, in this embodiment, one second straight stitched portion 55 is formed between the short side 10c and the third straight stitched portion 56. As described above, in this embodiment, the short side 10c, the second straight stitched portion 55, the third straight stitched portion 56, the second straight stitched portion 55, the first straight stitched portion 54, the second straight stitched portion 55, the third straight stitched portion 56, and the short side 10d are arranged in this order along the second direction A2.

[0083] In this embodiment, the first straight stitched portion 54, the multiple second straight stitched portions 55, and the multiple third straight stitched portions 56 are formed so as to be equally spaced from one another. Of the first straight stitched portion 54, the second straight stitched portion 55, and the third straight stitched portion 56, one straight stitched portion is disposed at a predetermined distance from another straight stitched portion adjacent to the one straight stitched portion in the second direction A2. The predetermined distance is, for example, 10 cm or more and 20 cm or less (15 cm as an example). Each of the first straight stitched portion 54, the second straight stitched portion 55, and the third straight stitched portion 56 extends from the long side 10a to the long side 10b of the fabric product 10. However, the arrangement of each of the first straight stitched portion 54, the second straight stitched portion 55, and the third straight stitched portion 56 can be changed as appropriate.

[0084] A first internal space S11 and a second internal space S12 are formed between the first fabric portion 51 and the second fabric portion 52, the first internal space S11 and the second internal space S12 being located on either side of the first straight stitched portion 54 in the second direction A2. The first internal space S11 and the second internal space S12 are divided by the first straight stitched portion 54 so as to be aligned along the second direction A2.

[0085] The first internal space S11 is formed on one side of the first straight stitched portion 54 in the second direction A2. The first internal space S11 is formed between the first straight stitched portion 54 and a third straight stitched portion 56 formed in a position closer to the short side 10d than the first straight stitched portion 54. The second internal space S12 is formed on the other side of the first straight stitched portion 54 in the second direction A2. The second internal space S12 is formed between the first straight stitched portion 54 and a third straight stitched portion 56 formed in a position closer to the short side 10c than the first straight stitched portion 54.

[0086] Between the second fabric portion 52 and the third fabric portion 53, a third internal space S13 is formed, which is located on the opposite side of the first fabric portion 51 as viewed from the second fabric portion 52. In this embodiment, the fabric product 10 has a plurality of third internal spaces S13. The plurality of third internal spaces S13 are aligned in the second direction A2. Two third internal spaces S13 adjacent to each other in the second direction A2 are separated in the second direction D2 by a second straight stitch portion 55.

[0087] In this embodiment, when viewed from the third direction A3, the first internal space S11 and the second internal space S12 overlap with the third internal space S13. When viewed from the third direction A3, the third internal space S13 overlaps with the first internal space S11 and the second internal space S12 adjacent to each other in the second direction A2. For example, the lengths of the first internal space S11, the second internal space S12, and the third internal space S13 in the second direction A2 are equal to each other. However, the lengths of the first internal space S11, the second internal space S12, and the third internal space S13 in the second direction A2 can be changed as appropriate.

[0088] Next, a method for manufacturing the fabric product 10 according to the second embodiment will be described. First, the first fabric portion 51, the second fabric portion 52, and the third fabric portion 53 are overlapped in the third direction A3 to form the laminated fabric portion 20 (step of forming the laminated fabric portion). The laminated fabric portion 20 is three pieces of fabric formed by overlapping the second fabric portion 52 on the third fabric portion 53, and overlapping the first fabric portion 51 on the second fabric portion 52. The laminated fabric portion 20 has a rectangular shape. The laminated fabric portion 20 has long sides 20a, 20b extending in the second direction A2, and short sides 20c, 20d extending in the first direction A1.

[0089] For ease of explanation, Fig. 9 illustrates the long sides 20a, 20b and the short sides 20c, 20d of the laminated fabric portion 20. As described below, the long sides 10a, 10b and the short sides 10c, 10d of the fabric product 10 are formed by sewing together the first fabric portion 51, the second fabric portion 52, and the third fabric portion 53 at the long sides 20a, 20b and the short sides 20c, 20d, respectively. Therefore, in the fabric product 10, the long sides 10a, 10b and the short sides 10c, 10d are formed at the positions of the long sides 20a, 20b and the short sides 20c, 20d, respectively.

[0090] Next, the first fabric portion 51 and the second fabric portion 52 are sewn together to form a third straight stitched portion 56. In this process, the third straight stitched portion 56 is formed at a position spaced a predetermined distance from the short side 20d in the second direction A2. For example, the first fabric portion 51 and the second fabric portion 52 are sewn together along a linear portion of the laminated fabric portion 20 where the third straight stitched portion 56 is to be formed, thereby forming the third straight stitched portion 56.

[0091] Next, the second straight stitched portion 55 is formed on the opposite side to the short side 20d as viewed from the third straight stitched portion 56. At this time, the second straight stitched portion 55 is formed at a position spaced a predetermined distance in the second direction A2 from the third straight stitched portion 56. For example, the second straight stitched portion 55 is formed by sewing together the second fabric portion 52 and the third fabric portion 53 along a linear portion of the laminated fabric portion 20 where the second straight stitched portion 55 is to be formed.

[0092] Next, the first straight stitched portion 54 is formed on the opposite side to the third straight stitched portion 56 as viewed from the second straight stitched portion 55. At this time, the first straight stitched portion 54 is formed at a position spaced a predetermined distance in the second direction A2 from the second straight stitched portion 55. For example, the first straight stitched portion 54 is formed by sewing together the first fabric portion 51 and the second fabric portion 52 along a linear portion of the laminated fabric portion 20 where the first straight stitched portion 54 is to be formed.

[0093] Next, the second straight stitched portion 55 is formed on the opposite side to the second straight stitched portion 55 as viewed from the first straight stitched portion 54. As a result, the second fabric portion 52 and the third fabric portion 53 are sewn together on both sides of the first straight stitched portion 54 in the second direction A2 to form a pair of second straight stitched portions 55 (step of forming second straight stitched portions). After forming the first straight stitched portion 54, the second straight stitched portion 55 is formed at a position closer to the short side 20c than the first straight stitched portion 54. At this time, a third internal space S13 is formed between the second fabric portion 52 and the third fabric portion 53.

[0094] Next, a third straight stitched portion 56 is formed on the opposite side of the first straight stitched portion 54 as viewed from the second straight stitched portion 55 formed at a position closer to the short side 20c than the first straight stitched portion 54. As a result, a portion (third straight stitched portion 56) where the first fabric portion 51 and the second fabric portion 52 are sewn together is formed on each side of the first straight stitched portion 54 in the second direction A2 (step of forming a sewn portion). That is, the third straight stitched portion 56 is formed between the second straight stitched portion 55 formed most recently and the short side 20c. At this time, a first internal space S11 and a second internal space S12 aligned along the second direction A2 are formed between the first fabric portion 51 and the second fabric portion 52.

[0095] Next, the second straight stitched portion 55 is formed on the opposite side to the first straight stitched portion 54 when viewed from the third straight stitched portion 56 formed in a position closer to the short side 20c than the first straight stitched portion 54. At this time, the second straight stitched portion 55 is formed between the third straight stitched portion 56 and the short side 20c.

[0096] Next, the first fabric portion 51, the second fabric portion 52, and the third fabric portion 53 are sewn together along the long side 20a and the short sides 20c, 20d of the laminated fabric portion 20. This forms the long side 10a and the short sides 10c, 10d of the fabric product 10. At this time, the first fabric portion 51, the second fabric portion 52, and the third fabric portion 53 are not sewn together along the long side 20b of the laminated fabric portion 20.

[0097] Next, the first internal space S11, the second internal space S12, and the third internal space S13 are filled with the contents 3 from the long side 20b of the laminated fabric portion 20 (step of filling with contents). More specifically, the first internal space S11 and the second internal space S12 are filled with the contents 3 from an opening defined by the first fabric portion 51 and the second fabric portion 52 on the long side 20b. In addition, the third internal space S13 is filled with the contents 3 from an opening defined by the second fabric portion 52 and the third fabric portion 53 on the long side 20b.

[0098] Next, the first fabric portion 51, the second fabric portion 52, and the third fabric portion 53 are sewn together along the long side 20b of the laminated fabric portion 20 to form the long side 10b of the fabric product 10. Through the above steps, a series of steps in the manufacturing method for the fabric product 10 according to the second embodiment is completed.

[0099] Next, the effects of the fabric product 10 according to the second embodiment and the manufacturing method of the fabric product 10 will be described. In the second embodiment, the fabric product 10 further includes a second straight stitched portion 55 extending in the first direction A1, which is a portion where the second fabric portion 52 and the third fabric portion 53 are sewn together at a position different from the first straight stitched portion 54 as viewed from the third direction A3, and a third straight stitched portion 56 extending in the first direction A1, which is a portion where the first fabric portion 51 and the second fabric portion 52 are sewn together at a position different from the first straight stitched portion 54 and the second straight stitched portion 55 as viewed from the third direction A3. Since a portion where the first internal space S11 and the third internal space S13 overlap each other in the third direction A3 and a portion where the second internal space S12 and the third internal space S13 overlap each other in the third direction A3 are formed, the portion where three pieces of fabric are sewn together can be reduced. This reduces the loss of heat from the area where the three pieces of fabric are sewn together, further improving heat retention. The fabric product 10 according to this embodiment does not have areas where the three pieces of fabric are sewn together on the inside of the long sides 10a, 10b and the short sides 10c, 10d in a plan view. Therefore, the above-mentioned effects are more pronounced in the fabric product 10 according to this embodiment.

[0100] The third straight stitched portion 56 is formed on the opposite side of the first straight stitched portion 54 as viewed from the second straight stitched portion 55. The second straight stitched portion 55 overlaps with the first internal space S11 or the second internal space S12 as viewed from the third direction A3. Therefore, the area in which the first internal space S11 is formed and the area in which the second internal space S12 is formed can be made wider. Therefore, the first internal space S11 and the second internal space S12 exhibit a heat insulating function, and thus it is possible to suppress the escape of heat through the fabric product 10. In addition, the lengths of the first internal space S11, the second internal space S12, and the third internal space S13 in the second direction A2 can be made closer to uniform. Since each internal space exhibiting a heat insulating function can be arranged in a manner that is close to uniform along the second direction A2, it is possible to reduce the portions from which heat is likely to escape. As a result, it is possible to further improve the heat retention.

[0101] The above describes the embodiments of the fabric product and the method for manufacturing the fabric product according to the present disclosure. However, the fabric product and the method for manufacturing the fabric product according to the present disclosure are not limited to the above-mentioned embodiments, and can be appropriately modified within the scope of the gist described in the claims. For example, the content and order of each step of the fabric product manufacturing method according to the present disclosure can be appropriately modified within the scope of the gist described above.

[0102] In the first embodiment, an example has been described in which the first fabric portion 11, the second fabric portion 12, and the third fabric portion 13 are identical in shape and size to one another. However, the shape and size of at least one of these three fabric portions may be different from the shape and size of the other one or two fabric portions.

[0103] Fig. 11(a) is a schematic cross-sectional view showing a fabric product 1A according to a first modified example. The first modified example is a modified example of the first embodiment (see Fig. 2(a)). The fabric product 1A differs from the fabric product 1 in that, instead of the second fabric portion 12, the fabric product 1A is provided with a second fabric portion 12A that is shorter than the second fabric portion 12. The length in the second direction D2 of the second fabric portion 12A is shorter than the lengths in the second direction D2 of the first fabric portion 11 and the third fabric portion 13. When viewed from the first direction D1, the second fabric portion 12A extends linearly in the second direction D2, and the first fabric portion 11 and the third fabric portion 13 are curved in the third direction D3.

[0104] Fig. 11(b) is a schematic cross-sectional view showing a fabric product 10A according to a second modified example. The second modified example is a modified example of the second embodiment (see Fig. 10). The fabric product 10A according to the second modified example differs from the fabric product 10A in that, instead of the second fabric portion 52, a second fabric portion 52A that is shorter than the second fabric portion 52 is provided. As in the first modified example, the length in the second direction A2 of the second fabric portion 52 is shorter than the lengths in the second direction A2 of the first fabric portion 51 and the third fabric portion 53. When viewed from the first direction A1, the second fabric portion 52A extends linearly in the second direction A2.

[0105] In the first modified example, the first fabric portion 11 and the third fabric portion 13 are pulled from both ends in the second direction D2 of the fabric product 1A toward the center in the second direction D2 of the fabric product 1A due to the tension of the second fabric portion 12A. As a result, the lengths in the third direction D3 of the first internal space S1, the second internal space S2, and the third internal space S3 can be lengthened, so that the length in the third direction D3 of the fabric product 1A (the thickness of the fabric product 1A) can be secured. Therefore, the heat retention can be further improved. Also, in the second modified example, the same action and effect as in the first modified example described above can be achieved.

[0106] In the above-described second embodiment, an example was described in which the fabric product 10 constitutes a part of the front body and a part of the back body of a down jacket. However, as shown in Fig. 12(a) and Fig. 12(b), the fabric product 10 may constitute the entire front body or the entire back body of a down jacket. In addition, the fabric product 10 may constitute the sleeves of a down jacket.

[0107] The fabric product 1 according to the first embodiment may be housed in a cover, for example. This cover is used, for example, to prevent the fabric product 1 from getting dirty. The length in the second direction D2 of the cover that houses the fabric product 1 may be shorter than the length in the second direction D2 of the fabric product 1. As an example, when the length in the second direction D2 of the fabric product 1 is 230 cm, the length in the second direction D2 of the cover is 210 cm. In this case, the fabric product 1 is housed in the cover while being pressed in a direction toward the inside of the second direction D2 (from each of the two ends of the fabric product 1 in the second direction D2 toward the center of the fabric product 1 in the second direction D2). As a result, the length in the third direction D3 of the first internal space S1, the second internal space S2, and the third internal space S3 is increased by the amount that the length in the second direction D2 of the fabric product 1 is reduced, so that the thickness of the fabric product 1 can be ensured. Therefore, the heat retention can be further improved.

[0108] In the manufacturing method of the fabric product 1 according to the first embodiment, after the first internal space S1, the second internal space S2, and the third internal space S3 are filled with the contents 3, a part of the contents 3 filled in the first internal space S1, the second internal space S2, and the third internal space S3 is moved to a space formed on the short side 2d side of the intermediate portion 21. Then, a fourth straight stitched portion 17 is formed, which extends from the intermediate portion 21 in the opposite direction to the first straight stitched portion 14 and the second straight stitched portion 15 and extends to the short side 2d of the laminated fabric portion 2.

[0109] However, the fourth straight stitch 17 may be formed before filling the first internal space S1, the second internal space S2, and the third internal space S3 with the contents 3. At this time, the fourth internal space S4 communicates with the first internal space S1 or the second internal space S2 at the intermediate portion 21, and the fifth internal space S5 communicates with the third internal space S3 at the intermediate portion 21. After that, the first internal space S1, the second internal space S2, and the fourth internal space S4 are filled with the contents 3 from the opening defined by the first fabric portion 11 and the second fabric portion 12 at the short side 2d. Next, the third internal space S3 and the fifth internal space S5 are filled with the contents 3 from the opening defined by the second fabric portion 12 and the third fabric portion 13 at the short side 2d. The contents 3 can also be filled into each internal space by this method.

[0110] In the first embodiment, an example was described in which the fourth internal space S4 and the fifth internal space S5 are filled with contents 3, but the fourth internal space S4 and the fifth internal space S5 do not have to be filled with contents 3.

[0111] In the above-described second embodiment (see FIG. 10), an example has been described in which the third straight stitched portion 56 is formed on the opposite side of the first straight stitched portion 54 as viewed from the second straight stitched portion 55. However, the third straight stitched portion 56 may be formed in a position different from the first straight stitched portion 54 and the second straight stitched portion 55 as viewed from the third direction A3. As an example, the third straight stitched portion 56 may be formed between the first straight stitched portion 54 and the second straight stitched portion 55 as viewed from the third direction A3.

[0112] In the above-described second embodiment, an example has been described in which the fabric product 10 has a rectangular shape. However, the fabric product 10 may have a polygonal shape such as a square shape, a rhombus shape, a parallelogram shape, or a trapezoid shape. For example, when the fabric product 10 is applied to a cuff or the like, the fabric product 10 may have a trapezoid shape. In this manner, the shape of the fabric product is not particularly limited.

[0113] In the above, an example has been described in which the fabric product 1 according to the first embodiment is a comforter (a duvet), and the fabric product 10 according to the second embodiment is a jacket (a down jacket). However, the fabric product 1 may also constitute a jacket, and the fabric product 10 may also constitute a comforter. In this way, the fabric product according to the present disclosure can be applied to various textile products made from cloth.

[0114] The fabric product 10 does not have a straight stitched portion where the first fabric portion 51 is sewn together with the second fabric portion 52 and the third fabric portion 53. In the manufacturing method of the fabric product 10, straight stitched portions extending in the first direction A1 from one end of the laminated fabric portion 20 in the second direction A2 to the other end are formed in order. At this time, it may be difficult to align the ends of the first fabric portion 51, the second fabric portion 52, and the third fabric portion 53 in the second direction A2 with each other.

[0115] 2(a), in the fabric product 1 according to the first embodiment, the first fabric portion 11 is sewn together with the second fabric portion 12 and the third fabric portion 13 at the second straight stitch portion 15. For example, the positions at which the first straight stitch portion 14 and the second straight stitch portion 15 are formed can be adjusted so that the portion at which the first fabric portion 11 is sewn together with the second fabric portion 12 and the third fabric portion 13 becomes an end portion of the fabric product 1 in the second direction D2. This makes it possible to easily align the ends of the first fabric portion 11, the second fabric portion 12, and the third fabric portion 13 in the second direction D2. [Explanation of symbols]

[0116] 1, 1A, 10, 10A... cloth product, 1a, 1b, 2a, 2b, 10a, 10b, 20a, 20b... long side, 1c, 1d, 2c, 2d, 10c, 10d, 20c, 20d... short side, 2, 20... laminated cloth portion, 3... contents, 11, 51... first cloth portion, 12, 12A, 52, 52A... second cloth portion, 13, 53... third cloth portion, 14, 54... first straight stitch portion , 15,55...second straight stitch portion, 56...third straight stitch portion, 17...fourth straight stitch portion, 18...fifth straight stitch portion, 21...middle portion, A1,D1...first direction, A2,D2...second direction, A3,D3...third direction, S1,S11...first internal space, S2,S12...second internal space, S3,S13...third internal space, S4...fourth internal space, S5...fifth internal space.

Claims

1. A fabric product comprising a first fabric portion, a second fabric portion, and a third fabric portion extending in a first direction and a second direction intersecting the first direction, the first fabric portion, and a third fabric portion overlapping each other in a third direction intersecting both the first direction and the second direction, A portion where the first fabric portion and the second fabric portion are sewn together includes a first straight stitch portion extending in the first direction, A first internal space and a second internal space are formed between the first fabric portion and the second fabric portion, the first internal space and the second internal space being located on both sides in the second direction as viewed from the first straight stitch portion, A third internal space is formed between the second fabric portion and the third fabric portion, the third internal space being located on the opposite side of the first fabric portion as viewed from the second fabric portion, When viewed from the third direction, the first straight stitch portion overlaps with the third internal space. cloth products.

2. The second fabric portion and the third fabric portion are sewn together at a position different from the first straight stitch portion when viewed from the third direction, and further includes a second straight stitch portion extending in the first direction, In the second straight stitch portion, the first cloth portion is sewn together with the second cloth portion and the third cloth portion. The fabric product according to claim 1.

3. A second straight stitch portion extending in the first direction is a portion where the second fabric portion and the third fabric portion are sewn together at a position different from the first straight stitch portion when viewed from the third direction, The third straight stitch portion is a portion where the first fabric portion and the second fabric portion are sewn together at a position different from the first straight stitch portion and the second straight stitch portion when viewed from the third direction, and further includes a third straight stitch portion extending in the first direction. The fabric product according to claim 1.

4. The third straight stitch portion is formed on the opposite side of the first straight stitch portion as viewed from the second straight stitch portion. The fabric product according to claim 3.

5. A step of stacking a first fabric portion, a second fabric portion, and a third fabric portion extending in a first direction and a second direction intersecting the first direction, in a third direction intersecting both the first direction and the second direction to form a laminated fabric portion; a step of sewing the first fabric portion and the second fabric portion together to form a first straight stitch portion extending in the first direction; A step of sewing the second fabric portion and the third fabric portion together on both sides of the first straight stitch portion in the second direction to form a pair of second straight stitch portions extending in the first direction; and forming a portion where the first fabric portion and the second fabric portion are sewn together on each side of the first straight stitch portion in the second direction, In the step of forming the sewn portion, a first internal space and a second internal space are formed between the first fabric portion and the second fabric portion, the first internal space and the second internal space being aligned along the second direction, In the step of forming the second straight stitch portion, a third internal space is formed between the second fabric portion and the third fabric portion. A method for manufacturing fabric products.

6. In the step of forming the first straight stitch portion, the first straight stitch portion is formed up to a middle portion of the laminated fabric portion in the first direction, In the step of forming the second straight stitch portion, the second straight stitch portion is formed up to the intermediate portion, filling the first internal space, the second internal space, and the third internal space with contents from the intermediate portion; After the step of filling the contents, a step of forming a fourth straight stitch portion extending from the middle portion in a direction opposite to the first straight stitch portion and the second straight stitch portion and extending to an end portion of the laminated fabric portion in the first direction is further included. A method for producing the fabric product according to claim 5.

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