Shoe upper fabric, shoe upper and shoe

Abstract

To provide a shoe which facilitates adjustment revision for supportability and detachability.SOLUTION: A piece of textile is used for the tongue part integration upper of a shoe. The textile 10 includes a cylindrical textile element 20, and the cylindrical textile element 20 includes a first sock part 1 and a second sock part 2. The first sock part 1 includes a first foot part 11 and a first leg part 21. the second sock part 2 includes a second foot part 12 and a second leg part 22. The textile is continuously formed in the order of the first foot part 11, the first leg part 21, the second leg part 22 and the second foot part 12. The central axis S1 of the first leg part 21 and the central axis S2 of the second leg part 22 are neither coincidental nor parallel to each other. By superimposing the first sock part 1 and the second sock part 2, the first sock part 1 forms a first layer arranged on the foot side of the upper, and the second sock part can form a second layer arranged in a manner covering the first layer, pertaining to the textile.SELECTED DRAWING: Figure 1

Description

[Technical Field]

[0001] The present invention relates to a fabric for use in shoe uppers, a shoe upper, and shoes, and more specifically to a fabric for shoe uppers, a shoe upper, and shoes that can be used in shoe uppers with integrated tongues to obtain shoes that are easy to wear. [Background technology]

[0002] The uppers of shoes, especially sports shoes, are typically made of various materials and components joined by sewing or other methods to form a three-dimensional shape that fits the shape of the foot. However, due to the time and effort required for sewing and gluing different components and the need to address unevenness at the joints, there is a growing demand for uppers that not only fit the foot shape but also adapt to changes in foot shape and provide improved softness, particularly at the part that comes into contact with the foot surface. To address this, uppers made of fabric have been proposed. For example, Patent Document 1 describes an upper that includes a knitted component forming a tubular structure formed by an integral knit configuration, and a yarn having a one-dimensional material configuration that extends through at least a portion of the longitudinal direction of the tube. Patent document 2 also describes a fabric element comprising a sock foot portion, a first heel portion, a first upper portion, a second heel portion disposed at the upper end of the upper portion and substantially symmetrical to the first heel portion with respect to a plane perpendicular to the axis of the upper portion, and a second upper portion that is an extension of the second heel portion, wherein the second heel portion is configured to cover the first heel portion when the second upper portion is pulled toward the sock foot portion. [Prior art documents] [Patent documents]

[0003] [Patent Document 1] Japanese Patent Application Laid-Open No. 2012-512698 [Patent Document 2] Special Publication No. 2016-504106 Summary of the Invention [Problem to be solved by the invention]

[0004] However, in Patent Document 1, the tongue is separate from the upper and partially overlaps with the upper, covering the instep, resulting in a poor fit. Furthermore, in Patent Document 2, the fabric element is connected to the reinforcing structure, but if the upper were formed solely from the fabric element without the reinforcing body, the first heel and second heel would be substantially symmetrical with respect to a plane perpendicular to the axis of the first upper portion, meaning that the heel-side and instep-side heights of the shoe opening would be nearly horizontal, making it difficult to adjust the ease of putting on and taking off.

[0005] In order to solve the above problems, the present invention relates to a fabric for a shoe upper, a shoe upper, and a shoe that, when used in a shoe upper with an integrated tongue, can provide a shoe whose support and ease of putting on and taking off can be easily adjusted. [Means for solving the problem]

[0006] The present invention relates to a fabric used in an upper with an integrated tongue for a shoe, the fabric comprising a tubular fabric element, the tubular fabric element comprising a first sock portion and a second sock portion, the first sock portion comprising a first foot portion and a first leg portion, the second sock portion comprising a second foot portion and a second leg portion, the first foot portion, the first leg portion, the second leg portion and the second foot portion being formed successively in this order, the central axis of the first leg portion and the central axis of the second leg portion being neither coincident nor parallel to each other, and by overlapping the first sock portion and the second sock portion, the first sock portion forms a first layer that is positioned on the foot side of the upper, and the second sock portion forms a second layer that is positioned to cover the first layer.

[0007] The present invention relates to a shoe upper including a fabric for the shoe upper, wherein the upper includes a first layer formed of a first sock section and positioned on the foot side, and a second layer formed of a second sock section and positioned to cover the first layer, and wherein the height of the heel side and the height of the instep side at the opening formed near the boundary between the first leg section and the second leg section are not level.

[0008] The present invention relates to a shoe in which the upper of the shoe is integrated with the sole. [Effects of the Invention]

[0009] According to one or more embodiments of the present invention, there is provided a shoe upper fabric, a shoe upper, and a shoe which, when used in a shoe upper with an integrated tongue, can provide a shoe whose support and ease of putting on and taking off can be easily adjusted. [Brief explanation of the drawings]

[0010] [Figure 1] FIG. 1 is a schematic diagram of a fabric according to one embodiment of the present invention laid flat so that the heels of the first sock part and the second sock part are located at both side ends of the upper part. [Figure 2] 10 is a schematic diagram illustrating the process of forming an upper using the same fabric. FIG. [Figure 3] FIG. 2 is a schematic side view of an upper formed from the same fabric. [Figure 4] FIG. 2 is a schematic cross-sectional view of the upper taken along line AA. [Figure 5] FIG. 2 is a schematic bottom view of the upper. [Figure 6] FIG. 1 is a schematic diagram of a fabric according to one embodiment of the present invention laid flat so that the heels of the first sock part and the second sock part are located at both side ends of the upper part. [Figure 7] FIG. 2 is a schematic side view of an upper formed from the same fabric. [Figure 8]FIG. 1 is a schematic diagram of a fabric according to one embodiment of the present invention laid flat so that the heels of the first sock part and the second sock part are located at both side ends of the upper part. [Figure 9] FIG. 2 is a schematic side view of an upper formed from the same fabric. [Figure 10] FIG. 1 is a schematic diagram of a fabric according to one embodiment of the present invention laid flat so that the heels of the first sock part and the second sock part are located at both side ends of the upper part. [Figure 11] FIG. 2 is a schematic side view of an upper formed from the same fabric. [Figure 12] FIG. 1 is a schematic diagram of a fabric according to one embodiment of the present invention laid flat so that the heels of the first sock part and the second sock part are located at both side ends of the upper part. [Figure 13] FIG. 2 is a schematic side view of an upper formed from the same fabric. DETAILED DESCRIPTION OF THE INVENTION

[0011] The inventors of the present application conducted extensive research to improve the ease of wearing an upper with an integrated tongue. As a result, they discovered that in a tubular textile element including a first sock portion including a first foot portion and a first leg portion, and a second sock portion including a second foot portion and a second leg portion, by making the central axes of the continuously formed first leg portion and second leg portion not coincident or parallel with each other, when the first sock portion forms a first layer that is placed on the foot side of the upper and the second sock portion forms a second layer that is placed so as to cover the first layer, the heights of the heel side and the instep side of the opening are not level, making it easier to adjust the support and ease of putting on and taking off. Specifically, if the heel side of the shoe opening is higher than the instep side, the shoes will be less likely to slip off and the ankle will be better held in place. Also, if the heel side of the shoe opening is lower than the instep side, it will be easier to put your foot into the shoe.

[0012] (Fabric) One or more embodiments of the fabric of the present invention are used in shoe uppers with integrated tongues, the fabric comprising a tubular fabric element, the tubular fabric element comprising a first sock section and a second sock section, the first sock section comprising a first foot section and a first leg section, the second sock section comprising a second foot section and a second leg section, the first foot section, the first leg section, the second leg section, and the second foot section being formed in succession in this order, and the central axis of the first leg section and the central axis of the second leg section being neither coincident nor parallel to each other.

[0013] The central axis of the first leg section and the central axis of the second leg section are neither aligned nor parallel to each other. Specifically, when the fabric is laid flat with the heels of the first sock section and the second sock section positioned at both ends of the upper section, the upper ends of the first leg section and the second leg section have curved sections that protrude upward (hereinafter also referred to as convex sections) or curved sections that are concave downward (hereinafter also referred to as concave sections), and it is preferable that the apex (highest point) of the convex section or the bottom (lowest point) of the concave section is positioned on the boundary line (also referred to as the connecting line) between the first sock section and the second sock section. This results in different heights on the heel side and the instep side of the opening of the upper formed by overlapping the first sock section and the second sock section, improving wearability.

[0014] Alternatively, the central axis of the first leg section and the central axis of the second leg section are not aligned or parallel to each other, specifically, when the fabric is laid flat with the heels of the first and second sock sections positioned at both ends of the upper, wrinkles are preferably formed in the lower part of either or both of the first and second leg sections near the boundary between the first and second sock sections. This results in a curved opening of the upper formed by overlapping the first and second sock sections, improving wearability and fit.

[0015] When the fabric is laid flat so that the heels of the first and second sock parts are located at both ends of the upper part, the length of the upper end of the first leg part and the length of the upper end of the second leg part may be the same or different. From the viewpoint of easily making the heights of the first and second layers different at the opening, it is preferable that the lengths of the upper end of the first leg part and the upper end of the second leg part are different. Furthermore, from the viewpoint of easily making the first layer located closer to the foot higher, it is more preferable that the length of the upper end of the first leg part be longer than the length of the upper end of the second leg part.

[0016] The first foot section may have a first opening near the toe or the sole thereof, and the second foot section may have a second opening near the toe or the sole thereof, and the first opening and / or the second opening may be closed by stitching, adhesive, etc.

[0017] The tubular fabric element can be a circular knitted fabric knitted on a circular knitting machine, such as a sock knitting machine. The structure of the circular knitted fabric is not particularly limited, and includes, for example, the three basic structures of plain knit (plain knit), rib knit (rib knit), and purl knit, as well as modified structures such as needle knit, tuck knit, float knit, tuck mesh knit, eyelet knit, and jacquard mesh knit.

[0018] The fibers constituting the circular knitted fabric are not particularly limited, and examples thereof include polyester fibers such as polyethylene terephthalate, polytrimethylene terephthalate, and polybutylene terephthalate, polyurethane fibers, polyamide fibers, acetate fibers, cotton fibers, rayon fibers, ethylene vinyl alcohol fibers, and nylon fibers.

[0019] The yarn used for the circular knitted fabric may be a spun yarn, but is preferably a filament. The filament may be a monofilament or a multifilament. The yarn used for the circular knitted fabric preferably contains a heat-sealed yarn, from the viewpoint of being easily molded to fit the shape of the foot without using a reinforcing material. The heat-sealed yarn (also called a hot-melt yarn) may be any yarn containing a heat-sealed fiber, and examples of the heat-sealed fiber include fibers containing one or more low-melting-point resins selected from the group consisting of polyester, polyamide, polyolefin, and polypropylene. The heat-sealed fiber may include a core and a sheath, and the sheath may be made of a low-melting-point resin, and the core may be made of a thermoplastic resin with a melting point higher than that of the low-melting-point resin constituting the sheath. The heat-sealed yarn is preferably fused at a temperature of, for example, 60°C or higher and 200°C or lower. In this specification, heat fusion means a state in which heat fusion fibers are bonded or fused together at least partially at the contact points between the heat fusion fibers due to external heat or heat and pressure.

[0020] The circular knitted fabric may contain elastic yarns and inelastic yarns in addition to the heat-bonded yarns. The elastic yarns preferably have a breaking elongation of 20% or more, more preferably 20 to 50%. The elastic yarns are not particularly limited, but examples thereof include elastic yarns made of polyurethane-based elastic fibers (also known as spandex), polyetherester-based elastic fibers, nylon fibers, etc. The elastic yarns may be made of elastic fibers alone, or may be yarns made of a combination of elastic fibers and inelastic fibers described below. The inelastic yarns preferably have a breaking elongation of less than 20%. The inelastic yarns are not particularly limited, but examples thereof include inelastic yarns made of inelastic fibers such as polyester-based fibers such as polyethylene terephthalate and polytrimethylene terephthalate; polyamide-based fibers; polyolefin-based fibers such as polypropylene; cellulose-based fibers such as cupra, rayon, cotton, and bamboo; and animal hair-based fibers such as wool.

[0021] (upper) The upper of one or more embodiments of the present invention is an upper with an integrated tongue, includes the fabric of one or more embodiments of the present invention, includes a first layer formed by a first sock section and positioned on the foot side, and a second layer formed by a second sock section and positioned to cover the first layer, and at the collar formed near the boundary between the first leg section and the second leg section (also referred to as the boundary line between the first sock section and the second sock section), the height of the heel side and the height of the instep side are not horizontal. In this specification, "height" means the height from a horizontal plane measured when the upper is placed on a horizontal plane.

[0022] Specifically, the first foot section of the first sock section forms the front midfoot section of the first layer of the upper, the second foot section of the second sock section forms the front midfoot section of the second layer of the upper, the first leg section of the first sock section forms the rear foot section of the first layer of the upper, and the second leg section of the second sock section forms the rear foot section of the second layer of the upper. The first opening of the first sock section and the second opening of the second sock section are located near the toe section or the sole side thereof of the upper, and may be sewn together directly or via an edge fabric element.

[0023] The heel side of the opening may be higher than the instep side. This makes it harder for the shoe to slip off and also improves the ankle's hold. Alternatively, the instep side of the opening may be higher than the heel side. This makes it easier to put the foot into the shoe. Furthermore, the upper end of the opening may have a curved shape (curved portion) in which the heel side and instep side are higher than the other parts. This makes it harder for the shoe to slip off and also improves the ankle's hold and fit. It is preferable that the lowest point of the curved portion (recess) is located closer to the heel side (also called the rear) or the instep side (also called the front). If the lowest point of the curved portion (recess) is closer to the instep side, the shoe will be harder to slip off and will provide better support, while if the lowest point of the curved portion (recess) is closer to the heel side, the shoe will be easier to put on.

[0024] At the opening, it is preferable that both the first and second layers have a double structure. This gives the opening a four-layer folded structure, which tends to improve ankle support. In addition, by positioning the boundary between the four-layer structure and the two-layer structure in the upper below the ankle and forming a seam at the boundary, it tends to further improve ankle support.

[0025] At the opening, the height of the upper end of the first layer and the height of the upper end of the second layer may be horizontal, but from the standpoint of a smooth wearing feel, it is preferable that the height of the upper end of the first layer be higher than the height of the upper end of the second layer.

[0026] (Shoes) In one or more embodiments of the shoe of the present invention, the upper of one or more embodiments of the present invention is integrated with the sole. This makes it possible to obtain a shoe that is comfortable on the foot and easy to put on and take off, while also providing support. There are no particular restrictions on the sole, and a sole designed for shoes can be used as appropriate. There are also no particular restrictions on the method for integrating the upper and sole, and examples include integration using a conventional cemented manufacturing method.

[0027] Hereinafter, one or more embodiments of the present invention will be described in detail with reference to the drawings. However, the present invention is not limited to the following embodiments. In the drawings, the same reference numerals indicate the same or corresponding parts, and repeated explanations will be omitted.

[0028] Fig. 1 is a schematic diagram of a fabric according to one embodiment of the present invention laid flat so that the heels of the first and second sock parts are located at both ends of the upper. Fig. 2 is a schematic diagram illustrating the process of forming an upper using the fabric. Fig. 3 is a schematic side view of the upper formed using the fabric, Fig. 4 is a schematic bottom view of the upper, and Fig. 5 is a schematic cross-sectional view of the upper taken along line AA.

[0029] The fabric 10 of this embodiment includes a tubular textile element 20, which includes a first sock portion 1 and a second sock portion 2. The first sock portion 1 includes a first foot portion 11 and a first leg portion 21. The second sock portion 2 includes a second foot portion 12 and a second leg portion 22. The first foot portion 11, the first leg portion 21, the second leg portion 22, and the second foot portion 12 are formed continuously in this order. The central axis S1 of the first leg portion 21 and the central axis S2 of the second leg portion 22 are neither coincident nor parallel to each other. The first foot portion 11 has a first opening 31 on the sole side near the toe. The second foot portion 12 has a second opening 32 on the sole side near the toe. In this embodiment, the second opening 32 is closed by sewing.

[0030] As shown in Figure 1, when the fabric 10 of this embodiment is laid flat with the heel 23 of the first sock portion 1 and the heel 24 of the second sock portion 2 positioned at both ends of the upper part, the upper ends of the first leg portion 21 and the second leg portion 22 have a curved portion that protrudes downward, i.e., a recess 3, and the bottom point of the recess 3 is located on the boundary line S3 between the first sock portion 1 and the second sock portion 2. The recess 3 may be pointed or rounded. Furthermore, the length L1 of the upper end of the first leg portion 21 is longer than the length L2 of the upper end of the second leg portion 22.

[0031] As shown in Fig. 2, the first sock section 1 is inserted into the second sock section 2 at the boundary line S3 between the first sock section 1 and the second sock section 2, and the first sock section 1 and the second sock section 2 are overlapped to obtain an upper 100 with an integrated tongue, which includes a first layer 101 formed of the first sock section 1 and positioned on the foot side, and a second layer 102 formed of the second sock section 2 and positioned to cover the first layer, as shown in Fig. 3. Specifically, the first foot section 11 of the first sock section forms a forefoot section 103, a first layer, of the upper 100, the second foot section 12 of the second sock section forms a forefoot section 104, a second layer, of the upper 100, the first leg section 21 of the first sock section forms a rear foot section 105, a first layer, of the upper 100, and the second leg section 22 of the second sock section forms a rear foot section 106, a second layer, of the upper 100. In the upper 100, the shoe opening 107 has a front-to-back inclined structure in which the instep side is higher than the heel side, making it easier to put the foot into the shoe.

[0032] By aligning the boundary line S3 between the first sock section 1 and the second sock section 2 with the ankle line S4 of the first sock section and the ankle line S5 of the second sock section, and by aligning the opening top line S6 of the first sock section and the opening top line S7 of the second sock section with the opening top line of the first layer and the opening top line of the second layer, as shown in FIG. 4, the first and second layers of the opening 107 both have double-layered structures, resulting in the opening 107 having a four-layer folded structure. Positioning the boundaries (S3, S4, and S5) between the four-layered structure and the two-layered structure below the ankle further enhances ankle support. If necessary, a seam may be formed at the boundary between the four-layered structure and the two-layered structure.

[0033] The central axis S1 of the first leg portion 21 and the central axis S2 of the second leg portion 22 are neither aligned nor parallel to each other, resulting in different heights on the heel side and the instep side at the opening 107. In addition, in this embodiment, the fabric 10 is used in which the length L1 of the upper end of the first leg portion 11 is longer than the length L2 of the upper end of the second leg portion, so that the position of the upper end of the first layer 117 is higher than the position of the upper end of the second layer 127 at the opening 107.

[0034] 5, the opening 31 of the first sock part 1 and the opening 32 of the second sock part 2 are located on the sole side near the toe of the upper 100, and may be sewn together as is. The upper 100 is then put on a foot mold of a predetermined shape, and heat-treated at a temperature at which the heat-fusible yarn contained in the fabric 10 forming the upper 100 fuses, for example, a temperature of 60°C or higher and 200°C or lower, to set the shape.

[0035] FIG. 6 is a schematic diagram of a fabric according to one embodiment of the present invention laid flat so that the heel 23 of the first sock portion and the heel 24 of the second sock portion are located at both side edges of the upper. FIG. 7 is a schematic side view of an upper formed from the fabric. As shown in FIG. 6, fabric 50 of this embodiment has a similar configuration to fabric 10, except that the length L1 of the upper end of the first leg portion 21 and the length L2 of the upper end of the second leg portion 22 are the same. Fabric 50 is formed in the same manner as fabric 10, with the first sock portion 1 inserted inside the second sock portion 2 at the boundary line S3 between the first sock portion 1 and the second sock portion 2, and the first sock portion 1 and the second sock portion 2 overlapping each other. The resulting upper 200 has a similar configuration to upper 100, except that the upper ends of the first layer 217 and the second layer 227 of the shoe opening 207 are at the same height, as shown in FIG. 7.

[0036] Fig. 8 is a schematic diagram of a fabric according to one embodiment of the present invention laid flat so that the heel 23 of the first sock section and the heel 24 of the second sock section are located at both side edges of the upper. Fig. 9 is a schematic side view of an upper formed from the fabric. As shown in Fig. 8, the fabric 60 of this embodiment has a similar configuration to the fabric 10, except that the upper ends of the first leg section 21 and the second leg section 22 have convex portions 4 that protrude upward, and the apex of the convex portions 4 is located on the boundary line S3 between the first sock section 1 and the second sock section 2. The convex portions 4 may be pointed or rounded. The upper 300 is formed by inserting the first sock section 1 into the second sock section 2 at the boundary line S3 between the first sock section 1 and the second sock section 2 in the same manner as the fabric 10, and overlapping the first sock section 1 and the second sock section 2. As shown in FIG. 9, the upper 300 has the same configuration as the upper 100, except that the opening 307 has a front-to-back inclined structure in which the heel side is higher than the instep side. The opening 307 has a heel side higher than the instep side, which makes it harder for the shoe to slip off and also improves the ankle's hold. The upper end of the first layer 317 is higher than the upper end of the second layer 327 at the opening 307.

[0037] FIG. 10 is a schematic diagram of a fabric according to one embodiment of the present invention laid flat with the heel 23 of the first sock section and the heel 24 of the second sock section positioned at both side edges of the upper. FIG. 11 is a schematic side view of an upper formed from the fabric. As shown in FIG. 10, fabric 70 of this embodiment has a similar configuration to fabric 10, except that the upper ends of first leg section 21 and second leg section 22 have convex portions 4 that protrude upward, the apex of convex portions 4 is located on the boundary line S3 between first sock section 1 and second sock section 2, and the length L1 of the upper end of first leg section 21 and the length L2 of the upper end of second leg section 22 are the same. Convex portions 4 may be pointed or rounded. Upper 400 is formed by inserting first sock portion 1 into second sock portion 2 at boundary line S3 between first sock portion 1 and second sock portion 2 in the same manner as fabric 10, and overlapping first sock portion 1 and second sock portion 2. As shown in Figure 11, upper 400 has the same configuration as upper 100, except that opening 407 has a front-to-back inclined structure in which the heel side is higher than the instep side, and the upper ends of first layer 417 and second layer 427 of opening 407 are at the same height. Having the heel side higher than the instep side at opening 407 makes the shoe less likely to slip off and also improves ankle support.

[0038] Fig. 12 is a schematic diagram of a fabric according to one embodiment of the present invention laid flat with the heel 23 of the first sock portion and the heel 24 of the second sock portion positioned at both side edges of the upper. Fig. 13 is a schematic side view of an upper formed from the fabric. As shown in Fig. 12, fabric 80 of this embodiment has a similar configuration to fabric 10, except that the upper ends of first leg portion 21 and second leg portion 22 have upwardly protruding convex portions 4, the apexes of which are located on boundary line S3 between first sock portion 1 and second sock portion 2, and wrinkled portions 5 are formed in the lower portions of both the first leg portion and second leg portion near boundary line S3 between first sock portion 1 and second sock portion 2. Upper 500 is formed by inserting first sock section 1 into second sock section 2 at boundary line S3 between first sock section 1 and second sock section 2 in the same manner as fabric 10, and overlapping first sock section 1 and second sock section 2. As shown in FIG. 13, upper 500 has the same configuration as upper 100, except that opening 507 has a curved shape (curved section) that is higher on the heel side and instep side than on the other sections (center section). The curved shape of opening 507 makes it harder for the shoe to slip off and also improves ankle hold and fit. At opening 507, the position of the upper end of first layer 517 is higher than the position of the upper end of second layer 527.

[0039] The above-described embodiments are to be considered in all respects as merely illustrative of the present invention, and not restrictive. Those skilled in the art to which the present invention pertains will be able to construct various embodiments incorporating the principles of the present invention, even if not expressly described herein, without departing from the spirit and essential characteristics thereof, when taking into account the teachings set forth above. [Industrial Applicability]

[0040] The fabric of one or more embodiments of the present invention is used in an upper with an integrated tongue, and an upper using the fabric can be suitably used as the upper of a sports shoe such as a running shoe, and a shoe using the upper can be suitably used as a sports shoe such as a running shoe. [Explanation of symbols]

[0041] 1. First Socks Division 2. Second Socks Section 3 recess 4 Convex part 5 Wrinkles 10, 50, 60, 70, 80 fabric 11 1st foot 12 Second foot 20 Tubular Fabric Elements 21 First Leg 22 Second Leg 23 Heel of first leg 24 Heel of second leg 31 First Opening 32 Second Opening 100, 200, 300, 400, 500 Upper (Tongue integrated upper) 101 1st layer 102 2nd layer 103 First layer, forefoot 104 Second layer, forefoot 105 First layer rear foot 106 Second layer rear foot 107, 207, 307, 407, 507 opening 117, 217, 317, 417, 517 First layer of the opening 127, 227, 327, 427, 527 Second layer of the opening S1 Central axis of the first leg S2 Center axis of the second leg S3 Boundary line between the first and second sock sections S3 S4 Ankle line of the first sock S5 Ankle line of second sock S6 Top edge of first sock opening S7 Top edge of second sock opening L1 Length of the top end of the first leg L2 Length of the upper end of the second leg

Claims

1. A fabric used for an upper with an integrated tongue of a shoe, the fabric includes a tubular fabric element, the tubular fabric element including a first sock portion and a second sock portion; the first sock part includes a first foot part and a first leg part, and the second sock part includes a second foot part and a second leg part, and the first foot part, the first leg part, the second leg part, and the second foot part are formed continuously in this order; The central axis of the first leg portion and the central axis of the second leg portion are neither coincident nor parallel to each other, By overlapping the first sock part and the second sock part, the first sock part forms a first layer that is disposed on the foot side of the upper, and the second sock part forms a second layer that is disposed so as to cover the first layer, When the fabric is laid flat so that the heels of the first sock part and the second sock part are positioned at both side ends of the upper part, the length of the upper end of the first leg part is greater than the length of the upper end of the second leg part.

2. 2. The shoe upper fabric according to claim 1, wherein when the fabric is laid flat so that the heels of the first sock part and the second sock part are located at both end portions of the upper part, the upper ends of the first leg part and the second leg part have a convex part that protrudes upward or a concave part that protrudes downward, and the apex of the convex part or the bottom of the concave part is located on the boundary line between the first leg part and the second leg part.

3. 2. The shoe upper fabric according to claim 1, wherein the first foot portion has a first opening near the toe portion or the sole side of the toe portion, and the second foot portion has a second opening near the toe portion or the sole side of the toe portion, and the first opening and / or the second opening are closed by sewing.

4. A shoe upper comprising the shoe upper fabric according to any one of claims 1 to 3, the upper includes a first layer formed of a first sock portion and disposed on a foot side, and a second layer formed of a second sock portion and disposed so as to cover the first layer; A shoe upper in which the height of the heel side and the height of the instep side are not level at an opening formed near the boundary line between the first leg part and the second leg part.

5. 5. The shoe upper according to claim 4, wherein the upper end of the shoe opening has a curved shape in which the heel side and the instep side are higher than other parts other than the heel side and the instep side, and the heel side is higher than the instep side.

6. 5. The shoe upper according to claim 4, wherein the opening has a four-layer folded portion formed by a double-layered portion of the first leg portion and a double-layered portion of the second leg portion.

7. 5. The shoe upper of claim 4, wherein the heel side and instep side of the upper end of the first layer and the portion between the heel side and instep side of the upper end of the first layer are all higher than the heel side and instep side of the upper end of the second layer and the portion between the heel side and instep side of the upper end of the second layer.

8. A shoe according to claim 4, wherein the upper is integrated with the sole.

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