Vamp and shoe

Abstract

The upper (2) is the upper (2) of the shoe (1) and comprises a base material (20) which is a knitted fabric. The base material (20) includes a surface layer facing the outer side of the upper (2). The surface layer includes a first region (21) formed from a plurality of yarns, and a second region (22) formed from a plurality of yarns, the arrangement density of which is higher than that of the first region (21). The yarns of the first region (21) and the yarns of the second region (22) are made of the same material. A plurality of colors are applied in the second region (22).

Description

Technical Field

[0001] The invention relates to a shoe upper and a shoe comprising the shoe upper. Background Art

[0002] As a conventional upper, a knitted upper is known (for example, refer to Patent Document 1). The knitted upper includes a cloth-like base material.

[0003] Regarding the method of adding color to the base material of the shoe upper as a knitted fabric, there is known a method of dyeing the base material after the base material is manufactured. When two or more colors are added to the base material by dyeing after the base material is manufactured, it is necessary to use two or more yarns of different materials. That is, it is necessary to dye the yarns of different materials with different dyes after the base material is manufactured by weaving the yarns of different materials.

[0004] Prior art literature

[0005] Patent Literature

[0006] Patent Document 1: Japanese Patent Application Publication No. 2016-182350 Summary of the invention

[0007] Problems to be solved by the invention

[0008] Yarns made of different materials have different physical properties such as strength, colorability, and stretchability. Therefore, if two or more colors are applied to a base material by using yarns made of different materials together as in the past, there is a problem that yarns with inferior physical properties must be used.

[0009] The present invention has been made in view of the above, and an object of the present invention is to obtain a shoe upper capable of being provided with two or more colors without using yarns with poor physical properties in at least a part of a base material.

[0010] Technical means of solving problems

[0011] In order to solve the above problems and achieve the purpose, the upper of the present invention is an upper of a shoe, and includes a base material as a knitted fabric. The base material includes a surface layer facing the outer side of the upper. The surface layer includes a first area formed by a plurality of yarns, and a second area formed by a plurality of yarns and having a higher yarn configuration density than the first area. The yarns in the first area and the yarns in the second area are made of the same material. A plurality of colors are applied to the second area.

[0012] Effects of the Invention

[0013] The shoe upper of the present invention has the effect that two or more colors can be applied to at least a partial region of the base material without using yarns with poor physical properties. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] [ Figure 1 ] Figure 1 It is a development view showing the instep of the shoe according to the first embodiment of the present invention.

[0015] [ Figure 2 ] Figure 2 It is a perspective view showing the shoe according to the first embodiment of the present invention.

[0016] [ Figure 3 ] Figure 3 It is along Figure 2 A cross-sectional view along line III-III is shown.

[0017] [ Figure 4 ] Figure 4 It is along Figure 2 A cross-sectional view along line IV-IV is shown.

[0018] [ Figure 5 ] Figure 5 It is along Figure 2 A cross-sectional view along line VV is shown.

[0019] [ Figure 6 ] Figure 6 It is along Figure 2 The cross-sectional view along the VI-VI line is shown.

[0020] [ Figure 7 ] Figure 7 is from Figure 3 The arrow X1 shown is a plan view of the surface layer.

[0021] [ Figure 8 ] Figure 8 is from Figure 4 The arrow X2 shown is a plan view of the surface layer.

[0022] [ Fig. 9 ] Fig. 9 is from Figure 5 The arrow X3 shown is a plan view of the surface layer.

[0023] [ Fig.10 ] Fig.10 is from Figure 6 The arrow X4 shown is a plan view of the surface layer.

[0024] [ Fig.11 ] Fig.11 is a cross-sectional view of a shoe upper of a shoe according to a first variation of the first embodiment of the present invention, and is equivalent to Figure 2 The figure is a cross-sectional view along line IV-IV shown.

[0025] [ Fig.12 ] Fig.12is a cross-sectional view of a shoe upper of a shoe according to a second variation of the first embodiment of the present invention, and is equivalent to Figure 2 The figure is a cross-sectional view taken along line VI-VI.

[0026] [ Fig.13 ] Fig.13 It is a development view showing the instep of the shoe according to the second embodiment of the present invention.

[0027] [ Fig.14 ] Fig.14 It is a development view showing a shoe upper of a shoe according to a third embodiment of the present invention.

[0028] [ Fig.15 ] Fig.15 It is along Fig.14 The cross-sectional view along the line XV-XV is shown.

[0029] [ Fig.16 ] Fig.16 It is a development view showing the instep of a shoe according to the fourth embodiment of the present invention. DETAILED DESCRIPTION

[0030] Hereinafter, embodiments of the instep and the shoe of the present invention will be described in detail based on the accompanying drawings. In addition, the present invention is not limited to the embodiments described above. In the following description, the same reference numerals are used for the same parts and repeated descriptions are omitted.

[0031] (Implementation Method 1)

[0032] Figure 1 2 is a development diagram showing the upper 2 of the shoe 1 according to the first embodiment of the present invention. Figure 1 In the figures, only the shoe 1 for the left foot is shown. Since the shoe 1 has a bilaterally symmetrical structure between the left foot and the right foot, only the shoe 1 for the left foot is described in this embodiment, and the description of the shoe 1 for the right foot is omitted. In the following description, the direction in which the vertical line passing through the center of the shoe 1 when the shoe 1 is viewed from above, that is, the shoe center axis C, extends is called the front-back direction, and the direction orthogonal to the front-back direction when the shoe 1 is viewed from above is called the foot width direction.

[0033] In the following description, the direction from the heel toward the toe in the shoe 1 in the front-back direction is referred to as the front, and the direction from the toe toward the heel in the shoe 1 in the front-back direction is referred to as the rear.

[0034] In the following description, the median side of the foot in the anatomical position is referred to as the inner foot side, and the side opposite to the median side in the anatomical position is referred to as the outer foot side. That is, the side closer to the median side in the anatomical position is referred to as the inner foot side, and the side farther from the median side in the anatomical position is referred to as the outer foot side.

[0035] In the following description, the up-down direction refers to a direction perpendicular to both the front-back direction and the foot width direction unless otherwise specified.

[0036] The vamp 2 includes: a forefoot portion R1 covering the forefoot portion of a wearer's foot of a standard body type; a midfoot portion R2 covering the midfoot portion of a wearer's foot of a standard body type; and a rearfoot portion R3 covering the rearfoot portion of a wearer's foot of a standard body type. From the front to the rear of the vamp 2, the forefoot portion R1, the midfoot portion R2, and the rearfoot portion R3 are sequentially connected.

[0037] A line passing through a position corresponding to approximately 30% to 40% of the dimension of the upper 2 in the front-to-back direction from the front end of the upper 2 and along the width direction of the foot is set as the first boundary line S1, and a line passing through a position corresponding to approximately 75% to 85% of the dimension of the upper 2 in the front-to-back direction from the front end of the upper 2 and along the width direction of the foot is set as the second boundary line S2. The first boundary line S1 is a line roughly along the metacarpophalangeal (MP) joint of a wearer of a standard body shape. The second boundary line S2 is a line roughly along the Chopart joint of a wearer of a standard body shape. The forefoot portion R1 of the upper is a portion located further forward than the first boundary line S1. The midfoot portion R2 of the upper is a portion located between the first boundary line S1 and the second boundary line S2. The rearfoot portion R3 of the upper is a portion located further rearward than the second boundary line S2.

[0038] Figure 2 1 is a perspective view showing a shoe 1 according to Embodiment 1 of the present invention. The shoe 1 is preferably a running shoe, but may also be a shoe for other sports, a walking shoe, a mountain climbing shoe, etc. The shoe 1 includes an upper 2 and a sole 3 .

[0039] The upper 2 is located above the sole 3. The upper 2 includes a substrate 20, a shoe tongue 23 and a shoelace 24.

[0040] The base material 20 covers the part on the instep side of the wearer. A shoe opening 20a and a shoe throat 20b are formed on the upper part of the base material 20. The shoe opening 20a is an opening for the wearer to put his foot into the base material 20. The shoe throat 20b is an opening that is connected to the shoe opening 20a and extends forward from the shoe opening 20a. A plurality of rope holes 20c separated from each other are provided along the front-to-back direction at the side edges of both sides of the shoe throat 20b in the foot width direction. Figure 2 In the figure, only the lace hole 20c provided at the side edge of the throat portion 20b on the outer foot side is shown. The lace hole 20c only needs to allow the shoelace 24 to pass through. The lace hole 20c is, for example, a through hole that penetrates the base material 20 in the thickness direction of the base material 20.

[0041] The tongue 23 is a member for protecting the instep of the wearer. The tongue 23 covers the shoe throat 20b inside the base material 20. The tongue 23 is fixed to the base material 20 by sewing, welding, bonding or a combination thereof. The base material 20 and the tongue 23 are preferably knitted fabrics made of cloth by winding yarn into a chain and hooking the chain parts together, but can also be woven fabrics, braided fabrics, etc. In particular, in the shoe 1 that requires breathability or lightness, the base material 20 and the tongue 23 are preferably double-layer Raschel warp knitted fabrics woven with polyester yarn.

[0042] The shoelace 24 is a rope-like member that is alternately passed through the lace holes 20c provided at one side edge of the shoe throat 20b in the foot width direction and the lace holes 20c provided at the other side edge in the foot width direction.

[0043] In addition, in this embodiment, the upper 2 including the tongue 23 and the shoelace 24 is used as an example for explanation, but the upper 2 may also be a mono-sock structure in which the portion corresponding to the tongue 23 is integrated with the ankle portion of the base material 20. In addition, the member that makes the base material 20 fit tightly to the foot may not be the shoelace 24 but may be, for example, a hook and loop fastener. In the case where the member that makes the base material 20 fit tightly to the foot is a hook and loop fastener, the base material 20 is not formed with the string hole portion 20c.

[0044] The sole 3 is located below the upper 2. The sole 3 covers the sole of the wearer's foot. The sole 3 is fixed to the base material 20 by stitching, welding, bonding or a combination thereof. The sole 3 has an outer sole 30 and a midsole 31. The lower surface of the outer sole 30 becomes a ground contact surface 30a set on the ground. The midsole 31 is located on the upper surface of the outer sole 30 and has a cushioning property. In addition, the outer sole 30 may also be integrated with the midsole 31. The outer sole 30 integrated with the midsole 31 is also called a "unisole".

[0045] Although not shown in the figure, the sole 3 includes a midsole covering the lower opening of the base material 20. The midsole is fixed to the upper surface of the midsole 31 by bonding or welding. The midsole is fixed to the lower edge of the base material 20 by sewing. Although not shown in the figure, the shoe 1 may also include an insole. In the case where the shoe 1 includes an insole, the insole is provided on the sole 3 inside the upper 2. In addition, the sole 3 may also be a structure in which the midsole is omitted.

[0046] Next, the substrate 20 will be described in more detail.

[0047] like Figure 1 As shown, the substrate 20 includes a forefoot portion R1, a midfoot portion R2, and a rearfoot portion R3. Figure 2As shown, the substrate 20 is arranged across the entire region of the upper 2 except for the tongue 23 and the shoelace 24. The substrate 20 is a single member in this embodiment, but can also be divided into a plurality of parts. When the substrate 20 is divided into a plurality of parts, for example, the substrate 20 can be divided into a part corresponding to the forefoot portion R1 of the upper, a part corresponding to the midfoot portion R2 of the upper, and a part corresponding to the rearfoot portion R3 of the upper. The divided parts are connected to each other by sewing, welding, bonding, or a combination thereof.

[0048] Figure 3 It is along Figure 2 A cross-sectional view along line III-III is shown. Figure 4 It is along Figure 2 A cross-sectional view along line IV-IV is shown. Figure 5 It is along Figure 2 A cross-sectional view along line VV is shown. Figure 6 It is along Figure 2 The cross-sectional view of the VI-VI line is shown in FIG. Figures 3 to 6 As shown in FIG. 1 , the base material 20 is a cloth-like member including a plurality of layers. The base material 20 includes: a surface layer 20d facing the outside of the upper 2, a back layer 20e facing the inside of the upper 2, and an intermediate layer 20f disposed between the surface layer 20d and the back layer 20e. The base material 20 has three layers in this embodiment, but it can be two or more layers. The back layer 20e is disposed with a gap between the surface layer 20d and the back layer 20e in the thickness direction of the base material 20. The intermediate layer 20f connects the surface layer 20d and the back layer 20e. The intermediate layer 20f is repeatedly connected to the surface layer 20d and the back layer 20e alternately.

[0049] Figure 7 is from Figure 3 The arrow X1 shown is a plan view of the surface layer 20d. Figure 8 is from Figure 4 The arrow X2 shown is a plan view of the surface layer 20d. Fig. 9 is from Figure 5 The arrow X3 shown is a plan view of the surface layer 20d. Fig.10 is from Figure 6 The plane view of the surface layer 20d is observed by the arrow X4 shown in FIG. Figures 7 to 10 As shown, the base material 20 is a knitted fabric formed by weaving a plurality of yarns 20g and 20h. In the present embodiment, the base material 20 is a knitted fabric formed by warp knitting.

[0050] The surface layer 20d includes Figure 7 and Figure 8 The first area 21 shown, and Fig. 9 and Fig.10 The second area 22 is shown. Figure 7 and Figure 8As shown, the first region 21 is a region formed by a plurality of yarns 20g and 20h. The first region 21 is a region where only a plurality of loops 20i are arranged and formed. Figure 3 and Figure 4 As shown, the yarn 20h is only arranged in the inner layer 20e in the first area 21 and extends along the inner layer 20e. Fig. 9 and Fig.10 As shown, the second region 22 is formed by a plurality of yarns 20g and 20h, and the arrangement density of the yarns 20g and 20h is higher than that of the first region 21. The second region 22 is a region where a plurality of loops 20i are arranged and a yarn 20h formed independently of the loops 20i is arranged. Fig. 9 and Fig.10 In order to clarify the position of the yarn 20h, the portion of the yarn 20g constituting the loop 20i that overlaps with the yarn 20h in a plan view is deleted and illustrated, but in fact, the yarn 20g also exists in the portion that overlaps with the yarn 20h in a plan view. Figure 5 and Figure 6 As shown, part of the yarn 20h rises from the back layer 20e to the surface layer 20d in the second region 22 and is exposed on the surface of the upper 2. In the drawings showing the yarn 20h, the yarn 20h is drawn with a dotted line to clarify the position of the yarn 20h.

[0051] The yarn 20g, yarn 20h of the first region 21 and the yarn 20g, yarn 20h of the second region 22 are yarns made of one fiber, yarns formed by bundling a plurality of fibers, twisted yarns, etc. The yarn 20g, yarn 20h of the first region 21 and the yarn 20g, yarn 20h of the second region 22 are made of the same material. The yarn 20g, yarn 20h of the first region 21 and the yarn 20g, yarn 20h of the second region 22 are formed, for example, only of polyester fibers not containing sulfonic acid groups. The polyester fibers not containing sulfonic acid groups are preferably recycled polyester fibers, polyester fibers colored by raw materials, or recycled polyester fibers colored by raw materials.

[0052] exist Figure 1 , Figure 2 In order to distinguish the first area 21 from the second area 22, dot-hatching is only added to the second area 22. Figure 1As shown, each of the first region 21 and the second region 22 is provided in the vamp forefoot portion R1, the vamp midfoot portion R2, and the vamp rearfoot portion R3 in the base material 20. The first region 21 is provided to surround a portion of the shoe opening 20a and the entirety of the shoe throat portion 20b. The first region 21 is adjacent to the shoe opening 20a and the shoe throat portion 20b. The second region 22 is provided to surround the remaining portion of the shoe opening 20a and the entirety of the first region 21. The second region 22 is adjacent to the remaining portion of the shoe opening 20a and the first region 21. In addition, the positions of the first region 21 and the second region 22 are not limited to the examples shown in the figure, and can also be appropriately changed.

[0053] A plurality of holes 21a are formed in the first region 21. The top view shape of the holes 21a is not particularly limited, and in this embodiment, the holes 21a are rhombus-shaped. The holes 21a are arranged in the front portion of the shoe throat portion 20b, the inner foot side portion of the shoe throat portion 20b, and the outer foot side portion of the shoe throat portion 20b in the base material 20. Figure 4 As shown, the hole 21a is a through hole that penetrates the surface layer 20d, the inner layer 20e, and the intermediate layer 20f of the first region 21 in the thickness direction of the substrate 20. The position of the opening 21b opened in the surface layer 20d of the hole 21a of the first region 21 is the same as the position of the opening 21c opened in the inner layer 20e of the hole 21a of the first region 21. In other words, the position of the opening 21b opened in the surface layer 20d of the hole 21a of the first region 21 is the same as the position of the opening 21c opened in the inner layer 20e of the hole 21a of the first region 21 when viewed along the thickness direction of the substrate 20.

[0054] like Figure 2 As shown in FIG. 1 , a plurality of holes 22a are also formed in the second region 22. The top view shape of the hole 22a is not particularly limited, but in this embodiment, it is a rhombus. The hole 22a is formed in the strip 22d. Figure 6 As shown, the hole 22a is a through hole that penetrates the surface layer 20d, the inner layer 20e, and the intermediate layer 20f of the second region 22 in the thickness direction of the substrate 20. The position of the opening 22b opened in the surface layer 20d of the hole 22a of the second region 22 is the same as the position of the opening 22c opened in the inner layer 20e of the hole 22a of the second region 22. In other words, the position of the opening 22b opened in the surface layer 20d of the hole 22a of the second region 22 is the same as the position of the opening 22c opened in the inner layer 20e of the hole 22a of the second region 22 when viewed along the thickness direction of the substrate 20.

[0055] Figure 1The color of the first area 21 shown is the same throughout the entire area of ​​the first area 21. The color of the first area 21 is different from the color of the second area 22. A plurality of colors are applied to the second area 22. The second area 22 includes a stripe 22d, an edge 22e of the stripe 22d, and a reference portion 22f other than the stripe 22d and the edge 22e. The color of the stripe 22d, the color of the edge 22e, and the color of the reference portion 22f are different from each other. The color of the upper 2 is four in this embodiment, but preferably three or more. In this specification, the so-called "color" means a color including a color, a series of colors from white to gray to black, that is, achromatic colors. In this specification, the so-called "color difference" means a difference between achromatic colors and achromatic colors, a difference in hue in chromatic colors, a difference in chromatic colors, and a difference in lightness in achromatic colors. The evaluation of the color difference can be appropriately selected from known color systems such as the Munsell color system, the XYZ color system, and the Lab color space.

[0056] The shade of the color of the strip 22d may be changed in stages, or may be the same throughout the entire area of ​​the strip 22d. The color of the edge 22e may be gradually changed to be assimilated to the color of the reference portion 22f around the edge 22e. The shade of the color of the reference portion 22f may be changed in stages, or may be the same throughout the entire area of ​​the reference portion 22f. In the former case, the shade of the color of the reference portion 22f is preferably changed in stages along the foot width direction of the upper 2. For example, the color of the reference portion 22f may be gradually lightened from the end of the upper 2 in the foot width direction toward the center of the upper 2 in the foot width direction.

[0057] like Fig. 9 and Fig.10 As shown in FIG. 1 , the yarn 20h different from the yarn 20g constituting the loop 20i is colored and irregularly arranged on the surface layer 20d of the second region 22, thereby applying multiple colors to the surface layer 20d of the second region 22. Figures 3 to 6 As shown, the yarn 20h that is only arranged in the inner layer 20e in the first area 21 is arranged not only in the inner layer 20e but also in the surface layer 20d in the second area 22, thereby multiple colors can be applied to the surface layer 20d of the second area 22. In this specification, the yarn 20h "arranged" in the surface layer 20d or the inner layer 20e means that the yarn 20h is woven into the surface layer 20d or the inner layer 20e, and the yarn 20h is not woven but overlapped on the surface layer 20d or the inner layer 20e.

[0058] In the manufacture of the shoe upper 2 , the first region 21 and the second region 22 can be formed in one process using a warp knitting machine.

[0059] Next, the effects of the instep upper 2 and the shoe 1 according to the present embodiment will be described.

[0060] In this embodiment, if Figure 3 As shown, the upper 2 includes a base material 20 as a knitted fabric, and the base material 20 includes a surface layer 20d facing the outer side of the upper 2. Figures 3 to 6 As shown, the surface layer 20d includes a first region 21 formed by a plurality of yarns 20g and 20h, and a second region 22 formed by a plurality of yarns 20g and 20h and having a higher arrangement density of the yarns 20g and 20h than the first region 21. The yarns 20g and 20h of the first region 21 and the yarns 20g and 20h of the second region 22 are made of the same material, and a plurality of colors are applied to the second region 22. With these structures, two or more colors can be applied to the second region 22 using the yarns 20g and 20h of the same material, so that two or more colors can be applied to at least a part of the base material 20 without using yarns with poor physical properties. In addition, different colors can be applied to the first region 21 and the second region 22 using the yarns 20g and 20h of the same material, so that two or more colors can be applied to the first region 21 and the second region 22 without using yarns with poor physical properties. That is, in this embodiment, by making the colors of the first region 21 and the second region 22 different from each other and applying two or more colors to the second region 22, there is no need to use threads with poor physical properties even when the colors of the upper 2 are set to three or more.

[0061] In the present embodiment, the base material 20 is a knitted fabric formed by warp knitting. Generally speaking, when the base material is a knitted fabric formed by warp knitting, the dyeing of the base material needs to be performed by post-weaving dyeing. In the case of making the base material using yarns of the same material, only one color can be applied to the base material in post-weaving dyeing. On the other hand, in the case of applying two or more colors to the base material by post-weaving dyeing, it is necessary to use two or more yarns of different materials. If so, it is necessary to use a yarn with poor physical properties. In this regard, in the present embodiment, the yarn 20g and the yarn 20h of the first region 21 and the yarn 20g and the yarn 20h of the second region 22 are the same material, the yarn 20g and the yarn 20h of the first region 21 and the yarn 20g and the yarn 20h of the second region 22 are colored by raw materials, and the yarn 20h of the second region 22 can be freely configured independently from the coil 20i, thereby, in the base material 20, two or more colors can be applied without using yarns with poor physical properties. In addition, the base material 20 can also be a knitted fabric formed by weft knitting.

[0062] Since the yarns 20g and 20h of the first region 21 and the yarns 20g and 20h of the second region 22 are made of the same material as in the present embodiment, the base material 20 can be easily recycled.

[0063] In this embodiment, Figure 3 and Figure 4 The yarn 20g and the yarn 20h of the first region 21 are shown Figure 5 and Figure 6 The yarn 20g and the yarn 20h of the second region 22 shown are formed only of polyester fibers not containing sulfonic acid groups. With this structure, compared with the case where the yarn 20g and the yarn 20h are formed of nylon fibers, cationic dyeable polyester fibers (CDP: Cationic Dyeable Polyester), etc., the physical properties such as the strength of the base material 20 can be improved, and the material cost of the base material 20 can be reduced.

[0064] When the polyester fiber containing no sulfonic acid group used as the yarn 20g or the yarn 20h is a recycled polyester fiber, the amount of petroleum-derived raw material used in the base material 20 can be reduced, and the manufacturing cost of the base material 20 and the environmental load can be reduced. By using the yarn 20g or the yarn 20h that is colored in two or more colors, two or more colors can be added to the base material 20 without dyeing the base material 20 after weaving. In addition, when the polyester fiber containing no sulfonic acid group used as the yarn 20g or the yarn 20h is a polyester fiber that is colored in the raw material, the amount of electricity and water used when dyeing the base material 20 can be suppressed compared to the case where the base material 20 is dyed after weaving, so the manufacturing cost of the base material 20 and the environmental load can be reduced.

[0065] In this embodiment, if Figure 7 and Figure 8 As shown, the first region 21 is a region where only a plurality of coils 20i are arranged. Fig. 9 and Fig.10 As shown, the second region 22 is a region where a plurality of coils 20i are arranged and a yarn 20h formed independently of the coil 20i is arranged. With the above structure, the colored yarn 20h can be freely arranged, so the degree of freedom in arranging the color applied to the base material 20 can be increased. Thus, the range of expression of the design of the upper 2 can be expanded. That is, even when the yarn 20g and the yarn 20h in the second region 22 are made of the same material, two or more colors can be applied to the upper 2.

[0066] In this embodiment, Figure 1 The color of the second area 22 shown changes step by step. With the above structure, the expression range of the design of the shoe upper 2 can be expanded.

[0067] In this embodiment, if Figure 1 As shown, a plurality of holes 21a are formed in the first area 21. With the above structure, the upper 2 can be made lighter while improving the elasticity and ventilation of the upper 2. In particular, in the present embodiment, the holes 21a are in a rhombus shape when viewed from above, so that when the wearer of the shoe 1 is running or the like, the upper 2 can be easily deformed to follow the expansion and contraction of the foot skin. Therefore, the contact of the upper 2 with the foot can be alleviated, and the generation of wrinkles in the upper 2 can be suppressed.

[0068] In this embodiment, if Figures 3 to 6 As shown, the base material 20 includes a plurality of layers, including a surface layer 20d facing the outside of the upper 2 and a lining layer 20e facing the inside of the upper 2. With this structure, the plurality of layers can be used to protect the wearer's foot disposed inside the upper 2. In particular, in this embodiment, the base material 20 is a three-layer structure including an intermediate layer 20f disposed between the surface layer 20d and the lining layer 20e, thereby further protecting the wearer's foot.

[0069] Next, a modification of the first embodiment will be described.

[0070] The materials of the yarn 20g and the yarn 20h of the first region 21 and the materials of the yarn 20g and the yarn 20h of the second region 22 are not limited to the polyester fiber without sulfonic acid group. The materials of the yarn 20g and the yarn 20h of the first region 21 and the materials of the yarn 20g and the yarn 20h of the second region 22 can be, for example: synthetic fibers made of polyester, polyamide, polyurethane, polyolefin, artificial protein, etc.; semi-synthetic fibers made of acetate, etc.; regenerated fibers made of rayon, cupro, etc.; natural fibers made of cotton, linen, silk, wool, etc.; inorganic fibers made of glass, metal, carbon, etc.

[0071] The upper 2 and the sole 3 may also be formed of the same material. For example, the upper 2 and the sole 3 may be formed of polyester fibers that do not contain sulfonic acid groups. The above structure makes it easy to recycle the entire shoe 1, thereby reducing the amount of petroleum-derived raw materials used, thereby reducing the manufacturing cost of the shoe 1 and reducing the environmental load. In addition, for example, the upper 2 and the sole 3 may also be formed of a thermoplastic polyester elastomer. The above structure can provide a sole 3 with high resilience, thereby improving the functionality of the shoe 1 and providing a shoe 1 that is easily recyclable.

[0072] The upper 2 and the sole 3 may also be formed of similar materials. In this specification, the so-called "similar materials" refer to polymer materials having a common monomer structure. For example, the upper 2 may be formed of polyester fibers not containing sulfonic acid groups, and the sole 3 may be formed of thermoplastic polyester elastomers. With the above structure, materials suitable for the required properties of the upper 2 and the sole 3 can be used, and since the entire shoe 1 is formed of similar materials, the entire shoe 1 can be easily recycled.

[0073] Fig.11 is a cross-sectional view showing the upper 2 of the shoe 1 according to the modification 1 of the embodiment 1 of the present invention, and is equivalent to Figure 2 The IV-IV line cross-sectional view is shown in FIG. Fig.11 As shown, the position of the opening 21b of the hole 21a in the first region 21 that opens in the surface layer 20d is different from the position of the opening 21c of the hole 21a in the first region 21 that opens in the inner layer 20e. In other words, the position of the opening 21b of the hole 21a in the first region 21 that opens in the surface layer 20d is offset from the position of the opening 21c of the hole 21a in the first region 21 that opens in the inner layer 20e when viewed along the thickness direction of the substrate 20. The hole 21a in the first region 21 is a bottomed hole.

[0074] In this modification, the holes 21a of the first region 21 are bottomed holes, so that the air permeability inside the shoe 1 can be ensured. In addition, in this modification, the holes 21a of the first region 21 are bottomed holes, so that foreign matter such as dust and sand can be prevented from penetrating into the inside of the shoe 1 through the holes 21a, and the socks inside the shoe 1 can be prevented from being seen from the outside of the shoe 1. In addition, in this modification, the positions of the openings 21b of the holes 21a of the first region 21 that open in the surface layer 20d and the positions of the openings 21c of the holes 21a of the first region 21 that open in the inner layer 20e are staggered when viewed along the thickness direction of the substrate 20, so that visual effects such as the design effect brought about by the pattern of the inner layer 20e being exposed from the openings 21b of the surface layer 20d and the lenticular effect brought about by slightly staggering the positions of the openings 21b and 21c can be exerted.

[0075] Fig.12 is a cross-sectional view showing the upper 2 of the shoe 1 according to the second modification of the first embodiment of the present invention, and is equivalent to Figure 2 The VI-VI line cross-sectional view is shown in FIG. Fig.12As shown, the position of the opening 22b of the hole 22a in the second region 22 opened in the surface layer 20d is different from the position of the opening 22c of the hole 22a in the second region 22 opened in the inner layer 20e. In other words, the position of the opening 22b of the hole 22a in the second region 22 opened in the surface layer 20d is offset from the position of the opening 22c of the hole 22a in the second region 22 opened in the inner layer 20e when viewed along the thickness direction of the substrate 20. The hole 22a in the second region 22 is a bottomed hole.

[0076] In this modification, the holes 22a of the second region 22 are bottomed holes, so that the ventilation inside the shoe 1 can be ensured. In addition, in this modification, the holes 22a of the second region 22 are bottomed holes, so that foreign matter such as dust and sand can be prevented from penetrating into the inside of the shoe 1 through the holes 22a, and the socks inside the shoe 1 can be prevented from being seen from the outside of the shoe 1. In addition, in this modification, the positions of the openings 22b of the holes 22a of the second region 22 that open in the surface layer 20d and the positions of the openings 22c of the holes 22a of the second region 22 that open in the inner layer 20e are staggered when viewed along the thickness direction of the base material 20, so that visual effects such as the design effect brought about by the pattern of the inner layer 20e being exposed from the openings 22b of the surface layer 20d and the lens effect brought about by slightly staggering the positions of the openings 22b and 22c can be exerted.

[0077] (Implementation Method 2)

[0078] Reference Fig.13 A shoe 1A according to the second embodiment will be described. Fig.13 1 is a development view showing a shoe upper 2A of a shoe 1A according to a second embodiment of the present invention. The shoe 1A according to the second embodiment differs from the shoe 1 according to the first embodiment in that the shapes of the holes 21a in the first region 21 are two or more.

[0079] like Fig.13 As shown, the first area 21 includes an extension area 21d adjacent to the shoe throat 20b in front of the shoe throat 20b. The extension area 21d extends across the shoe center axis C and in the foot width direction. The holes 21a in the extension area 21d are two or more holes of different shapes. Here, the so-called shape of the hole 21a means including the outer shape of the hole 21a and the size of the hole 21a. In the present embodiment, the outer shapes of the holes 21a in the extension area 21d are all rhombus-shaped, but the sizes of the holes 21a in the extension area 21d are different. The size of the hole 21a decreases from the center in the foot width direction of the first area 21 toward the end in the foot width direction of the first area 21. In addition, the holes 21a in the extension area 21d only need to be two or more holes of different shapes in at least one of the outer shape of the hole 21a and the size of the hole 21a.

[0080] Next, effects of the instep upper 2A and the shoe 1A according to the present embodiment will be described.

[0081] When the wearer of the shoe 1A performs an action such as running, the foot moves differently in each part of the foot. In this embodiment, the holes 21a in the first area 21 are holes of two or more different shapes, and the shape of the holes 21a can be adjusted so that the upper 2A can be easily deformed to follow the movement of the foot. Therefore, the contact of the upper 2A with the foot can be alleviated, and the generation of wrinkles in the upper 2A can be suppressed.

[0082] (Implementation 3)

[0083] Reference Fig.14 and Fig.15 A shoe 1B according to a third embodiment will be described. Fig.14 1 is a development view showing a shoe upper 2B of a shoe 1B according to a third embodiment of the present invention. Fig.15 It is along Fig.14 The shoe 1B of the third embodiment is different from the shoe 1 of the first embodiment in that the middle layer 20f includes regions with different arrangement densities of the yarns 20g and the middle layer 20f includes regions with different thicknesses.

[0084] like Fig.14 As shown, the base material 20 of the upper 2B includes a first region 21 and a second region 22. The second region 22 is arranged from the outer foot side portion of the upper midfoot portion R2 to the outer foot side portion of the upper rear foot portion R3, and is arranged from the inner foot side portion of the upper midfoot portion R2 to the inner foot side portion of the upper rear foot portion R3. A portion of the second region 22 is arranged over the entirety from the rear portion of the inner foot side edge of the shoe throat portion 20b to the inner foot side edge of the shoe opening 20a.

[0085] like Fig.15 As shown in FIG. 2 , the middle layer 20f of the first region 21 includes a region where the arrangement density of the yarn 20g is different. Hereinafter, the region where the arrangement density of the yarn 20g is different is referred to as a density change region 21e. Fig.14 , the density change region 21e is schematically indicated by a thick solid line. The top view shape of the density change region 21e is not particularly limited, but in the present embodiment, it is a substantially rectangular shape that is longer in the foot width direction than in the front-back direction. The density change region 21e is not limited to the position shown in the figure, and can also be appropriately changed.

[0086] like Fig.15 As shown, the arrangement density of the yarn 20g in the middle layer 20f of the density change region 21e changes stepwise. In this embodiment, the density of the yarn 20g in the middle layer 20f of the density change region 21e increases from the center toward the end in the foot width direction. Fig.15In the figure, the left side of the paper is the center side in the foot width direction, and the right side of the paper is the end side in the foot width direction. For example, by setting the number of yarns 20g to zero in the center of the foot width direction of the density change region 21e, the interval between adjacent yarns 20g in the foot width direction becomes narrower from the center in the foot width direction toward the end, thereby making it possible to increase the density of the yarns 20g in the middle layer 20f from the center in the foot width direction toward the end. In addition, the density of the yarns 20g in the middle layer 20f may be set to increase from the end in the foot width direction toward the center, or may be set to increase from one side toward the other side in the front-back direction.

[0087] The intermediate layer 20f of the first region 21 includes regions with different thicknesses. Hereinafter, the regions with different thicknesses of the intermediate layer 20f are referred to as thickness variation regions 21f. Fig.14 , the thickness variation region 21f is schematically illustrated by a thick solid line. The top view shape of the thickness variation region 21f is not particularly limited, but in the present embodiment, it is a substantially rectangular shape that is longer in the foot width direction than in the front-back direction. In the present embodiment, the thickness variation region 21f is consistent with the density variation region 21e, but may also be provided at a position different from the density variation region 21e. That is, the thickness variation region 21f is not limited to the position shown in the figure, and may also be appropriately changed.

[0088] like Fig.15 As shown, the thickness D of the middle layer 20f in the thickness change region 21f changes in stages. In the present embodiment, the thickness D of the middle layer 20f in the thickness change region 21f increases from the center toward the end in the foot width direction. In addition, the thickness D of the middle layer 20f may be set to increase from the end toward the center in the foot width direction, or may be set to increase from one side toward the other side in the front-back direction.

[0089] exist Fig.14 The portion with diagonal hatching in the first region 21 shown does not have the hole 21a formed therein. Although not shown in the figure, the hole 21a is formed between the adjacent portions with diagonal hatching. That is, the portions with the hole 21a formed therein and the portions without the hole 21a are alternately arranged in the front-back direction on both sides of the throat portion 20b in the first region 21 in the foot width direction.

[0090] Next, the effects of the instep upper 2B and the shoe 1B according to the present embodiment will be described.

[0091] In the vamp 2B, the material hardness is different between the portion with the intermediate layer 20f and the portion without the intermediate layer 20f. If the material hardness is different, when the foot is bent, the load is concentrated on the portion of the vamp 2 where the material hardness is low, and the vamp 2B is easily bent, wrinkled, damaged, etc. In this embodiment, by changing the arrangement density of the yarn 20g in the intermediate layer 20f in stages, the load generated when the foot is bent, etc. can be dispersed. Therefore, the bending and wrinkling of the vamp 2B become less obvious, the fit with respect to the wearer's foot can be improved, and the vamp 2B is not easily damaged.

[0092] In this embodiment, by changing the thickness D of the intermediate layer 20f in stages, the effect described in the paragraph 0066 can be achieved. In addition, in this embodiment, by changing the thickness D of the intermediate layer 20f in stages, a design with a height difference in the thickness direction of the upper 2 can be expressed, thereby creating a visual effect brought about by a three-dimensional sense. In addition, in this embodiment, by changing the thickness D of the intermediate layer 20f in stages, the inner layer 20e partially contacts the foot, thereby improving the ventilation inside the shoe 1B.

[0093] (Implementation 4)

[0094] Reference Fig.16 A shoe 1C according to a fourth embodiment will be described. Fig.16 1 is a development view showing a shoe upper 2C of a shoe 1C according to a fourth embodiment of the present invention. The shoe 1C according to the fourth embodiment is different from the shoe 1 according to the first embodiment in that the base material 20 includes a third region 25 .

[0095] like Fig.16 As shown, the base material 20 of the upper 2C includes a third area 25 formed by a plurality of yarns 20j. Fig.16 , the third region 25 is shaded with diagonal lines. The third region 25 is a region other than the second region 22 in the shaded region. The third region 25 is arranged at the inner foot side portion of the midfoot portion R2 of the upper. The material of the yarn 20j of the third region 25 is different from the material of the yarn 20g and the yarn 20h of the first region 21 and the material of the yarn 20g and the yarn 20h of the second region 22. For example, when the yarn 20g and the yarn 20h of the first region 21 and the yarn 20g and the yarn 20h of the second region 22 are formed only of polyester fibers not containing sulfonic acid groups, the yarn 20j of the third region 25 is formed of fibers other than polyester fibers not containing sulfonic acid groups.

[0096] Next, the effects of the instep upper 2C and the shoe 1C according to the present embodiment will be described.

[0097] In order to make the upper 2C fit the wearer's foot, there is a part of the upper 2C that requires a different elasticity than other parts. As such a part, for example, the inner foot side part of the midfoot part R2 of the upper can be cited. In this embodiment, the base material 20 includes a third area 25 formed by a plurality of yarns 20j, and the material of the yarn 20j of the third area 25 is different from the material of the yarn 20g and the yarn 20h of the first area 21 and the yarn 20g and the yarn 20h of the second area 22. With the above structure, the third area 25 can be provided at a part that requires a different elasticity, such as the inner foot side part of the midfoot part R2 of the upper, so that the adaptability of the upper 2C to the wearer's foot can be improved.

[0098] The yarn 20j of the third region 25 may be made of a material similar to the yarn 20g and the yarn 20h of the first region 21 and the yarn 20g and the yarn 20h of the second region 22. For example, the yarn 20g and the yarn 20h of the first region 21 and the yarn 20g and the yarn 20h of the second region 22 may be formed only of polyester fibers not containing a sulfonic acid group, and the yarn 20j of the third region 25 may be formed of a thermoplastic polyester elastomer. With this structure, the base material 20 of the upper 2C is entirely formed of similar materials, so that the base material 20 can be easily recycled.

[0099] The structures shown in the above embodiments are examples of the contents of the present invention, and they can be combined with other known technologies, the embodiments can be combined with each other, and part of the structure can be omitted or changed within the scope not departing from the gist of the present invention.

[0100] The upper of the first view is the upper of the shoe,

[0101] The shoe upper comprises a base material as a knitted fabric,

[0102] The substrate comprises a surface layer facing the outer side of the upper,

[0103] The surface layer includes a first region formed by a plurality of yarns, and a second region formed by a plurality of yarns and having a higher yarn arrangement density than the first region.

[0104] The yarn in the first region and the yarn in the second region are made of the same material,

[0105] A plurality of colors are applied to the second region.

[0106] The shoe upper according to a second aspect is as described in the shoe upper according to the first aspect, wherein the yarn in the first region and the yarn in the second region are formed only of polyester fibers that do not contain a sulfonic acid group.

[0107] The shoe upper of the third aspect is as described in the shoe upper of the first aspect or the second aspect, wherein the first area is an area where only a plurality of coils are arranged and formed,

[0108] The second region is a region where a plurality of loops are arranged and where yarns formed independently of the loops are arranged.

[0109] A shoe upper according to a fourth aspect is as described in the shoe upper according to any one of the first to third aspects, wherein a plurality of holes are formed in the first region.

[0110] A shoe upper according to a fifth aspect is as described above in the shoe upper according to the fourth aspect, wherein the holes in the first region are holes of two or more different shapes.

[0111] The shoe upper of the sixth aspect is as described in the shoe upper of the fourth aspect or the fifth aspect, wherein when a vertical line passing through the center of the shoe in the foot width direction and along the front-back direction of the shoe in a top view is set as the shoe center axis, the first area extends in the foot width direction across the shoe center axis,

[0112] The size of the hole decreases from the center in the foot width direction of the first region toward the end in the foot width direction of the first region.

[0113] The shoe upper according to a seventh aspect is as described in the shoe upper according to any one of the fourth to sixth aspects, wherein the base material includes a plurality of layers, and the plurality of layers include an inner layer facing the inner side of the shoe upper.

[0114] The shoe upper according to an eighth aspect is as described in the shoe upper according to the seventh aspect, wherein positions of openings of the holes in the first region opened in the surface layer are different from positions of openings of the holes in the first region opened in the back layer.

[0115] The shoe upper of a ninth aspect is as described in the shoe upper of any one of the fourth to eighth aspects, wherein the holes in the first area are holes with bottoms.

[0116] The shoe upper according to a tenth aspect is as described in the shoe upper according to the seventh aspect, wherein the base material is a three-layer structure including an intermediate layer disposed between the surface layer and the inner layer.

[0117] The shoe upper according to the eleventh aspect is as described in the shoe upper according to the tenth aspect, wherein the intermediate layer includes regions with different yarn arrangement densities.

[0118] The shoe upper according to a twelfth aspect is as described in the shoe upper according to the tenth aspect or the eleventh aspect, wherein the arrangement density of the yarns in the intermediate layer changes in stages.

[0119] The shoe upper according to a thirteenth aspect is as described in the shoe upper of any one of the tenth to twelfth aspects, wherein the intermediate layer includes regions with different thicknesses.

[0120] The shoe upper according to a fourteenth aspect is as described in the shoe upper according to any one of the tenth to thirteenth aspects, wherein the thickness of the intermediate layer changes in stages.

[0121] The shoe upper according to a fifteenth aspect is as described in the shoe upper according to any one of the first to fourteenth aspects, wherein the base material includes a third region formed of a plurality of yarns,

[0122] The material of the yarn in the third region is different from the material of the yarn in the first region and the material of the yarn in the second region.

[0123] A shoe upper according to a sixteenth aspect is as described in the shoe upper according to the second aspect, wherein the polyester fiber not containing a sulfonic acid group is a recycled polyester fiber.

[0124] The shoe upper according to a seventeenth aspect is as described in the shoe upper according to the second aspect, wherein the polyester fiber not containing a sulfonic acid group is a polyester fiber whose raw material is colored.

[0125] The shoe upper according to an eighteenth aspect is as described in the shoe upper according to any one of the first to seventeenth aspects, wherein the color of the second area changes in stages.

[0126] The shoe upper according to a nineteenth aspect is as described in the shoe upper of any one of the first to eighteenth aspects, wherein a color of the first area is different from a color of the second area.

[0127] The shoe upper according to the twentieth aspect is as described in the shoe upper according to any one of the first to nineteenth aspects, wherein the shoe upper has three or more colors.

[0128] The shoe upper according to a twenty-first aspect is as described in the shoe upper according to any one of the first to twentieth aspects, wherein the base material is a knitted fabric formed by warp knitting.

[0129] A shoe according to a twenty-second aspect comprises: the shoe upper according to any one of the first to twenty-first aspects; and a shoe sole located below the shoe upper.

[0130] Explanation of symbols

[0131] 1. 1A, 1B, 1C: Shoes

[0132] 2, 2A, 2B, 2C: Upper

[0133] 3: Sole

[0134] 20: Base material

[0135] 20a: Shoe opening

[0136] 20b: Throat

[0137] 20c: Rope hole

[0138] 20d: Surface

[0139] 20e: Inner layer

[0140] 20f: Middle layer

[0141] 20g, 20h, 20j: Yarn

[0142] 20i: Coil

[0143] 21: First Area

[0144] 21a, 22a: Hole

[0145] 21b, 21c, 22b, 22c: Opening

[0146] 21d: Extended area

[0147] 21e: Density variation region

[0148] 21f: Thickness variation area

[0149] 22: Second Area

[0150] 22d: Strip

[0151] 22e: Edge

[0152] 22f: Benchmark section

[0153] 23: Tongue

[0154] 24: Shoelaces

[0155] 25: Third Area

[0156] 30: Outsole

[0157] 30a: Ground plane

[0158] 31: Midsole

[0159] C: Shoe center axis

[0160] D: Thickness

[0161] R1: Forefoot

[0162] R2: Midfoot

[0163] R3: Upper rear foot

[0164] S1: First boundary line

[0165] S2: Second boundary line

Claims

1. A vamp is a vamp of a shoe. The shoe upper comprises a base material as a knitted fabric, The substrate comprises a surface layer facing the outer side of the upper, The surface layer includes a first region formed by a plurality of yarns, and a second region formed by a plurality of yarns and having a higher yarn arrangement density than the first region. The yarn in the first region and the yarn in the second region are made of the same material, A plurality of colors are applied to the second region.

2. The shoe upper according to claim 1, wherein: The yarns of the first region and the yarns of the second region are formed only of polyester fibers that do not contain sulfonic acid groups.

3. The shoe upper according to claim 1, wherein: The first region is a region where only a plurality of coils are arranged. The second region is a region where a plurality of loops are arranged and where yarns formed independently of the loops are arranged.

4. The shoe upper according to claim 1, wherein: A plurality of holes are formed in the first region.

5. The shoe upper according to claim 4, wherein: The holes in the first region are two or more types of holes having different shapes.

6. The shoe upper according to claim 5, wherein: When a vertical line passing through the center of the shoe in the foot width direction and along the front-rear direction of the shoe is defined as the shoe center axis, the first region extends in the foot width direction across the shoe center axis. The size of the hole decreases from the center in the foot width direction of the first region toward the end in the foot width direction of the first region.

7. The shoe upper according to claim 4, wherein: The substrate includes a plurality of layers including an inner layer facing the inner side of the upper.

8. The shoe upper according to claim 7, wherein: The positions of the openings of the holes in the first region that open to the surface layer are different from the positions of the openings of the holes in the first region that open to the back layer.

9. The shoe upper according to claim 7, wherein: The holes in the first region are bottomed holes.

10. The shoe upper according to claim 7, wherein: The substrate is a three-layer structure including an intermediate layer disposed between the surface layer and the inner layer.

11. The shoe upper according to claim 10, wherein: The middle layer includes regions with different yarn arrangement densities.

12. The shoe upper according to claim 11, wherein: The arrangement density of the yarns in the intermediate layer changes step by step.

13. The shoe upper according to claim 10, wherein: The intermediate layer comprises regions of varying thickness.

14. The shoe upper according to claim 13, wherein: The thickness of the intermediate layer changes in stages.

15. The shoe upper according to claim 1, wherein: The substrate comprises a third region formed by a plurality of yarns, The material of the yarn in the third region is different from the material of the yarn in the first region and the material of the yarn in the second region.

16. The shoe upper according to claim 2, wherein: The polyester fiber not containing a sulfonic acid group is a recycled polyester fiber.

17. The shoe upper according to claim 2, wherein: The polyester fiber containing no sulfonic acid group is a polyester fiber colored by raw material.

18. The shoe upper according to claim 1, wherein: The color of the second area changes in stages.

19. The shoe upper according to claim 1, wherein: The color of the first area is different from the color of the second area.

20. The shoe upper according to claim 1, wherein: The shoe upper has three or more colors.

21. The shoe upper according to claim 1, wherein: The base material is a knitted fabric formed by warp knitting.

22. A shoe comprising: The upper according to any one of claims 1 to 21; as well as The sole of the shoe is located below the upper.

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