Shoe

Abstract

A shoe (1) comprises an upper (2) covering the instep. A bottomed hole (20d) recessed in the thickness direction of the upper (2) is integrally formed in the upper (2). The bottom (20e) of the hole (20d) is a single layer comprising at least two linear bodies (23) having different stretchability.

Description

Technical Field

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

[0002] If you wear shoes for a long time, or wear shoes for running and other sports, the temperature and humidity inside the shoes will rise. If the temperature and humidity inside the shoes rise, the inside of the shoes will be stuffy and the comfort of the wearer will be impaired.

[0003] Therefore, generally, through holes are provided in the shoe upper to improve the ventilation inside the shoe (see, for example, Patent Document 1).

[0004] Prior art literature

[0005] Patent Literature

[0006] Patent Document 1: Japanese Patent Application Publication No. 2004-174251 Summary of the invention

[0007] Problems to be solved by the invention

[0008] However, if through holes are provided in the vamp, the rigidity of the portion of the vamp where the through holes are formed is reduced. Therefore, there is a problem that when the wearer of the shoe performs sports such as running, the vamp will excessively expand and contract around the portion where the through holes are formed. Therefore, it is desired to develop a shoe that can ensure the air permeability inside the shoe and suppress the excessive expansion and contraction of the vamp.

[0009] The present invention has been made in view of the above, and an object of the present invention is to obtain a shoe that can ensure air permeability inside the shoe and suppress excessive expansion and contraction of the shoe upper.

[0010] Technical means of solving problems

[0011] In order to solve the above problems and achieve the purpose, the shoe of the present invention includes a vamp covering the instep. A hole with a bottom is integrally formed on the vamp and is concave along the thickness direction of the vamp. The bottom of the hole is a layer including at least two linear bodies with different elasticity.

[0012] Effects of the Invention

[0013] The shoe of the present invention has the effect of ensuring air permeability inside the shoe and suppressing excessive expansion and contraction of the shoe upper. 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 2 is a cross-sectional view of a shoe upper according to a modified example of the first embodiment of the present invention, Figure 2 The figure shown is equivalent to the cross-sectional view along line III-III. DETAILED DESCRIPTION

[0018] Hereinafter, embodiments of 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 parts are marked with the same symbols, and repeated descriptions are omitted.

[0019] (Implementation Method 1)

[0020] Figure 1 FIG. 2 is a development diagram showing the upper 2 of the shoe 1 according to the first embodiment of the present invention. Figure 1 Each of the figures only illustrates the shoe 1 for the left foot. Since the shoe 1 has a bilaterally symmetrical structure between the left foot and the right foot, in this embodiment, only the shoe 1 for the left foot is described, and the description of the shoe 1 for the right foot is omitted. In the following description, the direction in which the shoe center axis C, which is a vertical line passing through the center of the shoe 1 when the shoe 1 is viewed from above, extends is referred to as the front-back direction, and the direction orthogonal to the front-back direction when the shoe 1 is viewed from above is referred to as the foot width direction.

[0021] In the following description, the direction from the heel toward the toe in the front-back midsole 1 is referred to as the front, and the direction from the toe toward the heel in the front-back midsole 1 is referred to as the rear.

[0022] In the following description, the median side of the foot in the anatomical position is referred to as the inner crura side, and the side opposite to the median side in the anatomical position is referred to as the outer crura side. That is, the side closer to the median in the anatomical position is referred to as the inner crura side, and the side farther from the median in the anatomical position is referred to as the outer crura side.

[0023] In the following description, unless otherwise specified, the up-down direction means a direction perpendicular to both the front-back direction and the foot width direction.

[0024] The shoe upper 2 includes a shoe front foot portion R1 covering the front foot portion of a wearer's foot of a standard body shape, a shoe midfoot portion R2 covering the middle foot portion of a wearer's foot of a standard body shape, and a shoe rear foot portion R3 covering the rear foot portion of a wearer's foot of a standard body shape. From the front of the shoe upper 2 toward the rear, the shoe front foot portion R1, the shoe midfoot portion R2, and the shoe rear foot portion R3 are connected in sequence.

[0025] A line along the foot width direction passing through a position approximately 35% to 45% of the front-to-back dimension of the upper 2 from the front end is set as the first boundary line S1, and a line along the foot width direction passing through a position approximately 75% to 85% of the front-to-back dimension of the upper 2 from the front end is set as the second boundary line S2. The first boundary line S1 is a line roughly along the metatarsophalangeal joint of a wearer with a standard body shape. The second boundary line S2 is a line roughly along the transverse tarsal joint of a wearer with a standard body shape. The forefoot portion R1 of the upper is the portion located in front of the first boundary line S1. The midfoot portion R2 of the upper is the portion located between the first boundary line S1 and the second boundary line S2. The rearfoot portion R3 of the upper is the portion located behind the second boundary line S2.

[0026] 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 .

[0027] The upper 2 is located above the sole 3. The upper 2 includes an upper body 20, a tongue 21, and a shoelace 22.

[0028] The upper body 20 covers the part on the instep side of the wearer. The upper part of the upper body 20 is formed with a shoe opening 20a, a shoe throat 20b, and a plurality of holes 20d. The shoe opening 20a is an opening for the wearer's foot to enter the interior of the upper body 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 threading parts 20c separated from each other in the front-to-back direction are provided on the side edges of both sides of the shoe throat 20b in the foot width direction. Figure 2 In the figure, only the threading portion 20c provided at the side edge of the shoe throat portion 20b on the outer foot side is shown. The threading portion 20c only needs to be able to pass the shoelace 22. The threading portion 20c is, for example, a through hole that penetrates the upper body 20 along the thickness direction of the upper body 20. The number of holes 20d can be increased or decreased appropriately. Figure 1 and Figure 2 The figure in the middle shows a case where the number of holes 20d is different. The following is a detailed description of the upper body 20 including the holes 20d.

[0029] The tongue 21 is a component for protecting the instep of the wearer. The tongue 21 covers the shoe throat 20b inside the upper body 20. The tongue 21 is fixed to the upper body 20 by sewing, welding, bonding or a combination of these. The upper body 20 and the tongue 21 are, for example, a woven fabric in which a thread is curled into a lock shape and the lock-shaped parts are hooked to each other to form a cloth-like fabric, a woven fabric in which warp yarns and weft yarns are crossed at a certain angle to form a cloth-like fabric, and a woven fabric in which three or more twisted yarns are crossed with each other and run diagonally to form a cloth-like fabric. In particular, in the shoe 1 that requires breathability and lightness, the upper body 20 and the tongue 21 are preferably double-layer Raschel warp knitted fabrics into which polyester yarns are knitted. In addition, the raw materials of the upper body 20 and the tongue 21 are not limited to the raw materials illustrated.

[0030] The shoelace 22 is a band-shaped member that is alternately passed through a stringing portion 20c provided at one side edge of the shoe throat portion 20b in the foot width direction and a stringing portion 20c provided at the other side edge in the foot width direction.

[0031] In addition, in this embodiment, the vamp 2 including the tongue 21 and the shoelace 22 is used as an example for description, but the vamp 2 may also be a sock structure in which a portion corresponding to the tongue 21 is integrated with an ankle portion of the vamp body 20. Moreover, the mechanism for making the vamp body 20 closely attached to the foot may be, for example, a hook and loop fastener instead of the shoelace 22. When the mechanism for making the vamp body 20 closely attached to the foot is a hook and loop fastener, the string threading portion 20c is not formed on the vamp body 20.

[0032] The sole 3 is located below the upper 2. The sole 3 covers the sole of the wearer. The sole 3 is fixed to the upper body 20 by stitching, welding, bonding or a combination of these. The sole 3 includes an outer sole 30 and a midsole 31. The lower surface of the outer sole 30 becomes a ground contact surface 30a provided 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 can be integrated with the midsole 31. The outer sole 30 integrated with the midsole 31 is also called an "integrated sole".

[0033] Although not shown in the figure, the sole 3 includes an insole covering the lower opening of the upper body 20. The insole is fixed to the upper surface of the midsole 31 by bonding or welding. The insole is fixed to the lower edge of the upper body 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 inside the upper 2 and on the sole 3. In addition, the sole 3 may also be a structure in which the insole is omitted.

[0034] Next, the upper body 20 will be described in detail.

[0035] like Figure 1 As shown, the upper body 20 includes a forefoot portion R1 , a midfoot portion R2 , and a rearfoot portion R3 . Figure 3 It is along Figure 2 The cross-sectional view of line III-III is shown in FIG. Figure 3 As shown, the upper body 20 includes a plurality of linear bodies 23 formed independently of each other. Figure 3 The middle figure shows two linear bodies 23, but in fact, there are other linear bodies 23 along the depth direction of the paper. Figure 3 In order to distinguish the two linear bodies 23, one of the linear bodies 23 is indicated by a dashed line, and the other linear body 23 is indicated by a dotted line. The linear bodies 23 are arranged in the entire region of the forefoot portion R1, the midfoot portion R2, and the rearfoot portion R3.

[0036] The linear body 23 is, for example, a yarn formed by bundling a plurality of fibers, a linear resin, a twisted yarn, etc. The material of the linear body 23 is, for example, polyester, polyurethane-based thermoplastic elastomer, polyurethane, nylon, spandex elastic fiber, Kevlar (registered trademark), ultra-high molecular weight polyethylene, single covered yarn (SCY) or double covered yarn (DCY) formed by covering polyurethane, etc. Each linear body 23 has a portion protruding alternately in one direction and the other direction of the thickness direction of the upper 2. It is preferred that the melting point of the material of each linear body 23 is above 150°C, and the melting point difference of the material of each linear body 23 is below 30°C.

[0037] The upper body 20 includes a bottom portion 20e, a peripheral portion 20f, and a base portion 20g. The bottom portion 20e is a portion where the linear bodies 23 overlap with each other in a thickness direction of the upper body 20 to form a layer. When the bottom portion 20e is viewed from a direction perpendicular to the thickness direction of the upper body 20 and a direction perpendicular to the length direction of the linear bodies 23, the linear bodies 23 in the bottom portion 20e overlap with each other. Although not shown in the figure, when the bottom portion 20e is viewed along the thickness direction of the upper body 20, the linear bodies 23 in the bottom portion 20e overlap with each other in a manner of forming a mesh.

[0038] The peripheral portion 20f is disposed around the bottom portion 20e and is a two-layer portion in which a portion of the linear body 23 forms one layer and the remaining portion of the linear body 23 forms the other layer. One layer and the other layer of the peripheral portion 20f are separated from each other along the thickness direction of the upper body 20. The thickness T1 of the bottom portion 20e is thinner than the thickness T2 of the peripheral portion 20f. The thickness T1 of the bottom portion 20e can be appropriately changed relative to the thickness T2 of the peripheral portion 20f, preferably 5% to 65%, more preferably 10% to 60%, and further preferably 20% to 55%.

[0039] The base 20g is adjacent to the peripheral portion 20f. The base 20g includes a portion of two layers in which a portion of the plurality of linear bodies 23 forms one layer and the remaining portion of the plurality of linear bodies 23 forms the other layer, and a portion in which the linear bodies 23 intersect with each other. One layer and the other layer of the base 20g are separated from each other along the thickness direction of the upper body 20. When the base 20g is observed from a direction perpendicular to the thickness direction of the upper body 20 and from a direction perpendicular to the length direction of the linear bodies 23, the linear bodies 23 in a portion of the base 20g intersect with each other. Although not shown in the figure, when the base 20g is observed along the thickness direction of the upper body 20, the linear bodies 23 in the base 20g may or may not intersect with each other.

[0040] A hole 20d with a bottom that is recessed along the thickness direction of the upper body 20 is integrally formed in the upper body 20. A plurality of holes 20d are formed in the upper body 20. The hole 20d is a so-called false hole that does not penetrate the upper body 20. The hole 20d opens toward the outer side of the upper body 20. In other words, the hole 20d opens toward the opposite side of the wearer's foot. The inner wall of the hole 20d includes a bottom 20e and a surrounding portion 20f. That is, the hole 20d is a space surrounded by the bottom 20e and the surrounding portion 20f. No hole 20d is formed in the base 20g. The air permeability of the portion of the upper 2 where the hole 20d is formed is higher than the air permeability of the portion of the upper 2 where the base 20g is formed.

[0041] The bottom 20e of the hole 20d is a layer including at least two linear bodies 23 having different elasticity. Figure 3 , there is illustrated a case where the bottom 20e of the hole 20d is formed by two linear bodies 23 with different elasticity. In the illustrated example, the elasticity of the linear body 23 represented by the dashed line is lower than the elasticity of the linear body 23 represented by the dotted line. The elasticity of the linear body 23 varies depending on the thickness, material, and processing state of the linear body 23. In order to make the elasticity of at least two linear bodies 23 constituting the bottom 20e different, it is sufficient to change at least one of the thickness, material, and processing state of each linear body 23. It is particularly preferred to use a combination of a coiled yarn and a non-coiled yarn, which have the same material and molecular structure but whose elasticity varies depending on the processing state of the yarn, for the linear bodies 23 with different elasticity. The elasticity of each linear body 23 can be evaluated using the Young's modulus of each linear body 23. The difference in the Young's modulus of at least two linear bodies 23 constituting the bottom 20e is preferably 5% or more. It is preferred that the ratio of the highly elastic linear body 23 in the entire upper body 20 is higher than the ratio of the less elastic linear body 23 in the entire upper body 20. It is preferred that the ratio of the less elastic linear body 23 in the bottom 20e of the hole 20d is higher than the ratio of the highly elastic linear body 23 in the bottom 20e of the hole 20d.

[0042] The plurality of linear bodies 23 constituting the bottom 20e of the hole 20d may be intertwined or not. In this specification, the plurality of linear bodies 23 being intertwined includes knitting the plurality of linear bodies 23, weaving the plurality of linear bodies 23, weaving the plurality of linear bodies 23, etc. In this specification, the plurality of linear bodies 23 being not intertwined means that the plurality of linear bodies 23 overlap each other by their own weight to form a layer. In this embodiment, the peripheral portion 20f and the base portion 20g also include at least two linear bodies 23 having different elasticity.

[0043] like Figure 1 As shown, a plurality of holes 20d are formed in the vamp forefoot portion R1 in the present embodiment, but it is sufficient that they are formed in at least one of the vamp forefoot portion R1, the vamp midfoot portion R2, and the vamp rearfoot portion R3. Although there are some exceptions, the holes 20d are arranged in front of the shoe throat portion 20b and obliquely in front of the shoe throat portion 20b. The holes 20d are formed in the central portion, the inner foot side portion, and the outer foot side portion of the vamp forefoot portion R1. The top view shape of the holes 20d formed in the central portion and the inner foot side portion of the vamp forefoot portion R1 is circular. The circular holes 20d are arranged in the front-to-back direction and the foot width direction. The holes 20d formed in the outer foot side portion of the vamp forefoot portion R1 are long holes extending in the front-to-back direction. The long hole-shaped holes 20d are arranged in the front-to-back direction and the foot width direction.

[0044] Next, the effects of the shoe 1 according to the present embodiment will be described.

[0045] In this embodiment, if Figure 3 As shown, by integrally forming a bottomed hole 20d recessed along the thickness direction of the upper 2 in the upper 2, the air permeability inside the shoe 1 can be improved. Moreover, in this embodiment, the bottom 20e of the hole 20d is a layer including at least two linear bodies 23 with different elasticity, thereby adjusting the elasticity of the bottom 20e of the hole 20d. For example, by setting a part of the bottom 20e of the hole 20d as a linear body 23 with low elasticity, when the wearer of the shoe 1 performs sports such as running, it is possible to suppress the upper 2 from excessively expanding and contracting around the portion where the hole 20d is formed. That is, in this embodiment, the air permeability inside the shoe 1 can be ensured, and the excessive expansion and contraction of the upper 2 can be suppressed.

[0046] In this embodiment, if Figure 3 As shown, since the hole 20d has a bottom, foreign matter such as garbage and sand can be prevented from passing through the hole 20d and entering the interior of the shoe 1.

[0047] In this embodiment, if Figure 3As shown in FIG. 1 , a bottom 20e is formed on the upper 2, where each linear body 23 overlaps with each other in the thickness direction to form a layer. Furthermore, a surrounding portion 20f is formed on the upper 2, which is arranged around the bottom 20e and has two layers, in which a part of the linear body 23 forms one layer and the rest of the linear body 23 forms the other layer. Furthermore, a base portion 20g is formed on the upper 2, which includes a part of the linear body 23 forming one layer and the rest of the linear body 23 forming the other layer, and a part where the linear bodies 23 intersect with each other. With these structures, the bottom 20e, the surrounding portion 20f, and the base 20g are continuously and integrally formed using a plurality of linear bodies 23, and the hole 20d is integrally formed on the upper 2. Although not shown in the figure, by providing a through hole in the upper 2, the base cloth is attached to the upper 2 in a manner that blocks the opening of one side of the through hole, and thus, when the upper 2 is provided with a bottom-shaped hole, the problem of the base cloth peeling off occurs. In this regard, in the present embodiment, since the hole 20d is integrally formed with the upper 2, the above-mentioned problem does not occur.

[0048] exist Figure 3 In the molding process of the material of each linear body 23 shown, the material is sometimes heated to about 150°C. In this case, if the melting point of the material of each linear body 23 is 150°C or more as in the present embodiment, the material of each linear body 23 can be prevented from melting and resinifying. The shoemaking process includes a step of heating the molded shoe 1. In the step of heating the shoe 1, in order to prevent the resinification accompanied by the melting of the linear body 23, the temperature of the heated shoe 1 is usually set in a manner to avoid the melting of the linear body 23 formed of a low melting point material. In the case where the melting point difference of the material of each linear body 23 is large (for example, the melting point difference of the material of each linear body 23 exceeds 30°C), there is a possibility that it will have an adverse effect on the shaping of the linear body 23 formed of a high melting point material. Therefore, if the melting point difference of the materials of each linear body 23 is less than 30°C as in the present embodiment, even if the temperature of the heated shoe 1 is set in a manner to avoid melting of the linear body 23 formed by the low melting point material, it will not have an adverse effect on the shaping of the linear body 23 formed by the high melting point material.

[0049] In this embodiment, if Figure 3As shown, the upper 2 includes a hole 20d and a base 20g, and the air permeability of the portion of the upper 2 where the hole 20d is formed is higher than the air permeability of the portion of the upper 2 where the base 20g is formed. Therefore, in this embodiment, the air permeability of the interior of the shoe 1 can be improved compared to the upper including only the base 20g. In addition, the inventors conducted an experiment to measure the air permeability of the portion of the upper 2 where the hole 20d and the base 20g are formed and the air permeability of the portion of the upper 2 where only the base 20g is formed in accordance with JIS L1096 A method (Frazier type method). In the portion of the upper 2 where the hole 20d and the base 20g are formed, the ratio of the hole 20d to the base 20g is approximately 1:3. The result of the experiment is that the air permeability of the portion of the upper 2 where the hole 20d and the base 20g are formed is 46.2cm 3 / cm 2 ·s, the air permeability of the part of the upper 2 where only the base 20g is formed is 42.8cm 3 / cm 2 ·s. The results of the above experiments have confirmed that the bottomed holes 20 d are effective in improving the air permeability of the inside of the shoe 1 .

[0050] In this embodiment, if Figure 1 As shown, by forming the hole 20d in the vamp forefoot portion R1, the ventilation inside the shoe 1 can be improved, and the vamp forefoot portion R1 can be easily deformed following the movement of the foot.

[0051] When the wearer of the shoe 1 is running or the like, the forefoot portion of the foot is twisted from the outer foot side to the inner foot side. Figure 1 The outer foot side portion of the forefoot portion R1 shown in the figure is shear-deformed. In this embodiment, the hole 20d formed in the outer foot side portion of the forefoot portion R1 is a long hole extending in the front-back direction, and the outer foot side portion of the forefoot portion R1 is easy to shear-deform following the movement of the foot. Therefore, the foot touch of the vamp 2 can be alleviated, and wrinkles on the vamp 2 can be suppressed.

[0052] In this embodiment, if Figure 3 As shown, the hole 20d opens toward the side opposite to the wearer's foot, thereby making it possible to suppress the unevenness of the inner surface side of the instep 2, thereby alleviating the touch of the instep 2 to the foot.

[0053] In addition, in this embodiment, Figure 3The number of the linear bodies 23 of the bottom 20e, the peripheral portion 20f, and the base 20g shown is 2, but it may be 3 or more. If the number of the linear bodies 23 is 3 or more, the elasticity of the upper body 20 can be adjusted in more stages. When the number of the linear bodies 23 is 3 or more, the elasticity of each linear body 23 may be appropriately set according to the purpose of the shoe 1, etc. For example, the elasticity of each linear body 23 may be different, or the elasticity of at least one linear body 23 may be different from the elasticity of other linear bodies 23. When the number of the linear bodies 23 is 3 or more, the number of the linear bodies 23 forming one layer in the peripheral portion 20f and the base 20g and the number of the linear bodies 23 forming another layer may be appropriately set according to the purpose of the shoe 1, etc.

[0054] In the present embodiment, two or more linear bodies 23 having different stretchability are used for the bottom portion 20e, the peripheral portion 20f, and the base portion 20g, but it is sufficient that they are used at least for the bottom portion 20e.

[0055] Figure 4 2 is a cross-sectional view of a shoe upper 2 of a shoe 1 according to a modified example of the first embodiment of the present invention. Figure 2 The III-III line cross-sectional view shown in FIG. Figure 4 As shown, the hole 20d may also be opened toward the inner side of the upper body 20. In other words, the hole 20d may also be opened toward the foot of the wearer. In this way, since the opening of the hole 20d is not toward the outer side of the upper body 20, foreign matter such as garbage and sand is difficult to enter the interior of the hole 20d.

[0056] The structures shown in the above embodiments are examples of the contents of the present invention, and may be combined with other known technologies, or part of the structures may be omitted or modified within the scope not departing from the gist of the present invention.

[0057] The first view of the shoe includes an upper covering the instep,

[0058] A hole with a bottom is integrally formed on the upper and is recessed along the thickness direction of the upper.

[0059] The bottom of the hole is a layer including at least two linear bodies having different elasticity.

[0060] A shoe according to a second aspect is the shoe according to the first aspect, wherein each of the linear bodies includes portions protruding alternately in one direction and the other direction in the thickness direction,

[0061] The shoe upper is formed with:

[0062] At the bottom, the linear bodies overlap with each other in the thickness direction to form a layer;

[0063] a peripheral portion, arranged around the bottom portion, and having two layers, one layer being a portion of the linear body and the other layer being the remaining portion of the linear body; and

[0064] The base portion includes a two-layer portion in which a part of the linear body forms one layer and the remaining part of the linear body forms the other layer, and a portion in which the linear bodies intersect each other.

[0065] A shoe according to a third aspect is the shoe according to the second aspect, wherein the melting point of the material of each of the linear bodies is 150° C. or higher, and the difference in melting point of the material of each of the linear bodies is 30° C. or lower.

[0066] A shoe according to a fourth aspect is the shoe according to the second or third aspect, wherein a thickness of the bottom portion is 5% to 65% of a thickness of the peripheral portion.

[0067] A shoe according to a fifth aspect is the shoe according to any one of the second to fourth aspects, wherein the air permeability of the portion of the upper where the hole is formed is higher than the air permeability of the portion of the upper where the base is formed.

[0068] The shoe of the sixth aspect is the shoe of any one of the first to fifth aspects, wherein the shoe upper comprises: a forefoot portion covering the forefoot portion of the wearer's foot; a midfoot portion covering the midfoot portion of the wearer's foot; and a rearfoot portion covering the rearfoot portion of the wearer's foot.

[0069] The hole is formed in the forefoot portion of the shoe.

[0070] A shoe according to a seventh aspect is the shoe according to the sixth aspect, wherein the hole formed in the outer foot side portion of the forefoot portion of the shoe is a long hole extending in the front-rear direction.

[0071] A shoe according to an eighth aspect is the shoe according to any one of the first to seventh aspects, wherein the hole opens toward the side opposite to the wearer's foot.

[0072] A shoe according to a ninth aspect is the shoe according to any one of the first to seventh aspects, wherein the hole opens toward a wearer's foot.

[0073] Explanation of symbols

[0074] 1: Shoes

[0075] 2: Upper

[0076] 3: Sole

[0077] 20: Upper body

[0078] 20a: Shoe opening

[0079] 20b: Throat

[0080] 20c: Rope threading

[0081] 20d: Hole

[0082] 20e: Bottom

[0083] 20f: Peripheral

[0084] 20g: Base

[0085] 21: Tongue

[0086] 22: Shoelaces

[0087] 23: Linear bodies

[0088] 30: Outsole

[0089] 30a: Ground plane

[0090] 31: Midsole

[0091] C: Shoe center axis

[0092] R1: Forefoot

[0093] R2: Midfoot

[0094] R3: Upper rear foot

[0095] S1: First boundary line

[0096] S2: Second boundary line

Claims

1. A shoe comprising an upper covering the instep, A hole with a bottom is integrally formed on the upper and is recessed along the thickness direction of the upper. The bottom of the hole is a layer including at least two linear bodies having different elasticity.

2. The shoe according to claim 1, wherein each of the linear bodies includes portions protruding alternately in one direction and the other direction of the thickness direction, The shoe upper is formed with: At the bottom, the linear bodies overlap with each other in the thickness direction to form a layer; a peripheral portion, arranged around the bottom portion, and having two layers, one layer being a portion of the linear body and the other layer being the remaining portion of the linear body; and The base portion includes a two-layer portion in which a part of the linear body forms one layer and the remaining part of the linear body forms the other layer, and a portion in which the linear bodies intersect each other. 3 . The shoe according to claim 1 , wherein the melting point of the material of each of the linear bodies is 150° C. or higher, and the difference in melting point of the material of each of the linear bodies is 30° C. or lower. 4 . The shoe according to claim 2 , wherein a thickness of the bottom portion is 5% to 65% relative to a thickness of the peripheral portion. 5 . The shoe according to claim 2 , wherein the air permeability of a portion of the upper where the hole is formed is higher than the air permeability of a portion of the upper where the base is formed.

6. The shoe according to claim 1, wherein the upper comprises: a forefoot portion of the vamp that covers the forefoot portion of the wearer's foot; a midfoot portion of the upper, covering the midfoot portion of the wearer's foot; and a rear foot portion of the upper, covering the rear foot portion of the wearer's foot, The hole is formed in the forefoot portion of the shoe.

7. The shoe according to claim 6, wherein the hole formed in the outer foot side portion of the forefoot portion of the shoe is a long hole extending in the front-rear direction.

8. The shoe of claim 1, wherein the aperture opens toward an opposite side of a wearer's foot.

9. The shoe of claim 1, wherein the aperture opens toward a wearer's foot.

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