Shoes

Abstract

The present invention provides a shoe with excellent fit that follows the movement of the foot. The upper of the shoe includes: an inner ankle cushion part 51B disposed in correspondence with a lower portion of the inner ankle of the wearer; an inner supporting cushion part 52B which extends upward and forward from the back side of the upper and which has a front end part extending above the inner ankle cushion part 51B so as to form a gap G with respect to the inner ankle cushion part 51B in a side view; an outer ankle cushion part 51A disposed in correspondence with a lower portion of the outer ankle of the wearer; and an outer supporting cushion part 52A which extends upward and forward from the back side of the upper and which has a front end part extending above the outer ankle cushion part 51A so as to form a gap G with respect to the outer ankle cushion part 51A in a side view.

Description

Technical Field

[0001] The present invention relates to shoes with excellent fit.

Background Art

[0002] Patent Document 1 discloses shoes provided with a cushioning convex pad that presses at least one of a first part behind the medial malleolus, a second part that is the arch of the instep, a third part behind the lateral malleolus, and a fourth part in front of the heel on the outside of the foot in order to enhance the fit and stability of the rear part of the foot and the like. Patent Document 2 discloses shoes provided with a pad impregnated with a bouncing pate in a foam on the inner side of a rigid support wall member installed in a part from the heel to the ankle in order to enhance the holding property and stability from the heel to the ankle.

Prior Art Documents

Patent Documents

[0003]

Patent Document 1

Patent Document 2

Summary of the Invention

[0004] However, even when pads such as those in Patent Documents 1 and 2 are provided, the shoes cannot sufficiently follow the movement of the foot during walking. The walking motion is a repetition of the stance phase and the swing phase. For example, a cycle of heel strike - flat foot contact - stance - heel off - toe off is repeated alternately with the left and right feet. During such a walking motion, the ankle rocks with respect to the sole of the foot with the ankle as a fulcrum. However, conventional shoes create a space between the foot and the shoe due to the movement of the foot during walking, resulting in a decrease in the fit.

Problems to be Solved by the Invention

[0005] An object of the present invention is to provide shoes that are less likely to create a space even when the wearer's foot moves during walking and have an excellent fit.

Means for Solving the Problems

[0006] The shoes of the present invention have a sole and an upper provided above the sole, and the upper has an inner ankle cushion portion disposed corresponding to the lower part of the wearer's inner ankle, and a portion disposed corresponding to the rear of the wearer's inner ankle, and an inner auxiliary cushion portion that extends from the rear side of the upper to the upper front and whose front end extends above the inner ankle cushion portion so as to form a gap with the inner ankle cushion portion in a side view, an outer ankle cushion portion disposed corresponding to the lower part of the wearer's outer ankle, and a portion disposed corresponding to the rear of the wearer's outer ankle, and an outer auxiliary cushion portion that extends from the rear side of the upper to the upper front and whose front end extends above the outer ankle cushion portion so as to form a gap with the outer ankle cushion portion in a side view.

Effects of the Invention

[0007] Even when the foot moves during walking, the outer ankle cushion portion, the outer auxiliary cushion portion, the inner ankle cushion portion, and the inner auxiliary cushion portion of the shoes of the present invention closely adhere to the periphery of the ankle and are less likely to create a space. Therefore, the shoes of the present invention have an excellent fit not only when standing but also when walking.

Brief Description of the Drawings

[0008]

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Mode for Carrying Out the Invention

[0009] In the terms indicating the directions in this specification, with reference to the foot when the wearer puts on the shoes, in a plan view, the toe side is expressed as "front", the heel side is expressed as "rear", the thumb side in the front-rear direction is expressed as "inner", and the opposite side is expressed as "outer", and in a side view, the side closer to the sole is expressed as "lower", and the side away from the sole is expressed as "upper". The front-rear direction refers to the direction along the shoe center axis (the shoe center axis is the line connecting the center of the wearer's heel and the part where the tip of the second finger is located) in a plan view. A side view means looking at the shoe from the inside or outside, and a plan view means looking at the shoe from above. In this specification, "substantially" means including the range acceptable in the technical field to which the present invention pertains. Further, in this specification, when a plurality of numerical ranges represented by "not less than the lower limit value and not more than the upper limit value" are separately described, any lower limit value and any upper limit value can be selected, and it is assumed that "not less than any lower limit value and not more than any upper limit value" can be set.

[0010] [Overview of Shoes] The shoe of the present invention has a sole and an upper provided above the sole. The sole is a member interposed between the ground and the sole of the foot. The sole has an outsole portion that contacts the ground, and, if necessary, has a midsole portion above the outsole portion. The upper is a member that covers the foot. The lower end portion of the upper is attached to the periphery of the sole. The upper and the sole cooperate to form a foot accommodation space for putting the foot in. The upper has an inner ankle cushion portion disposed corresponding to the lower part of the wearer's inner ankle in a side view (side view from the inside), an inner auxiliary cushion portion extending from the rear side to the front upper side, an outer ankle cushion portion disposed corresponding to the lower part of the wearer's outer ankle in a side view (side view from the outside), and an outer auxiliary cushion portion extending from the rear side to the front upper side. The inner ankle cushion portion and the outer ankle cushion portion support the periphery of the lower part of the inner ankle and the periphery of the lower part of the outer ankle (the periphery of the joint between the heel, the tibia, and the fibula), and the inner auxiliary cushion portion and the outer auxiliary cushion portion deform following the movement of the wearer's foot during walking. For this reason, when the wearer walks, it is difficult for a space to occur between the upper and above the heel of the shoe of the present invention, and the fitting feeling is improved. Hereinafter, the shoes of the present invention will be specifically described with reference to the drawings. The shoes are composed of a pair of left and right shoes for the left foot and the right foot. In each figure, for the sake of convenience, the left-foot shoe is illustrated. Since the right-foot shoe is symmetrical to the left-foot shoe, it is not illustrated.

[0011] [First Embodiment] FIG. 1 is an outer side view of the shoe of the first embodiment (a side view seen from the outside of the shoe), FIG. 2 is an inner side view of the same shoe (a side view seen from the inside of the shoe), FIG. 3 is a rear view of the same shoe (a view of the shoe seen from the rear side), FIG. 4 is a plan view of the same shoe (a view of the shoe seen from the upper side), FIG. 5 is a cross-sectional view cut in the inside-outside direction, and FIG. 6 is a cross-sectional view cut in the front-rear direction. FIG. 7 is a cross-sectional view cut horizontally including the outer ankle cushion portion 51A, the outer auxiliary cushion portion 52A, the inner ankle cushion portion 51B, and the inner auxiliary cushion portion 52B, and the cut surface is seen from above. FIG. 8 is a cross-sectional view cut horizontally including the outer heel cushion portion 61A and the inner heel cushion portion 61B, and the cut surface is seen from above. The wavy lines in FIGS. 1 to 4 represent stitches. Further, in FIGS. 1 to 3, the outer ankle cushion portion 51A, the outer auxiliary cushion portion 52A, the inner ankle cushion portion 51B, the inner auxiliary cushion portion 52B, the outer heel cushion portion 61A, the inner heel cushion portion 61B, the sub-heel cushion portion 32, the sub-cuboid cushion portion 31, and the instep cushion portion 62 are represented by thick broken lines. Further, in each cross-sectional view of FIGS. 5 to 8, the first sheet and the second sheet are represented by a single solid line (without representing the thickness of the first sheet and the second sheet). In FIGS. 1 to 8, the shoe 100 has a sole 1 and an upper 2. The upper 2 is provided above the sole 1 by connecting the lower peripheral edge portion of the upper 2 to the upper peripheral edge portion of the sole 1. Note that a part or all of the lower peripheral edge portion of the upper 2 may be wrapped around the upper surface of the sole 1 to connect the upper 2 to the sole 1.

[0012] [Sole] The sole 1 is provided under the upper 2. The sole 1 preferably has an outsole portion 11, and preferably has a sub-cuboid cushion portion 31 and a sub-heel cushion portion 32. Further, in order to improve the wearing comfort of the wearer, it is preferable that a base cushion portion 33 is provided on the upper surface of the sole 1. When roughly classified for each part corresponding to the wearer's foot, the sole 1 has, in order from the front side to the rear side, a front foot portion generally corresponding to the phalanges, a midfoot portion generally corresponding to the metatarsal bones, cuneiform bones, navicular bones and cuboid bones, and a rear foot portion generally corresponding to the calcaneus bone. Here, in this specification, the skeletal structure of the foot such as the calcaneus bone can be specified based on the standard human foot skeletal structure. The layer structure of the sole 1 may be a single-layer structure (excluding the above cushion portions), or may be a multi-layer structure of two or more layers. The layer structure of the sole 1 consists only of the outsole portion 11 which is the portion in contact with the ground, or is a multi-layer structure having the outsole portion 11 and other sole portions such as a midsole portion 12. Note that the other sole portions include a so-called insole (an insole that can be attached and detached inside the shoe). However, the insole, outsole portion, midsole portion or mid-bottom portion, etc. are not essential elements of the sole 1, and they can be omitted as appropriate. For example, as shown in FIGS. 5 and 6, the sole 1 has an outsole portion 11, a midsole portion 12 overlapped on the upper surface of the outsole portion 11 and connected by an adhesive or the like, and a mid-bottom portion 13 overlapped on the upper surface of the midsole portion 12 and connected by an adhesive or the like. Here, in this specification, "connected" means that two or more members conceptually are connected. For example, it includes that two or more members conceptually are connected by any appropriate joining means such as an adhesive, solvent adhesion, stitching, fusion or component structure connection, and that two or more members are integrally formed.

[0013] The middle bottom part 13 preferably has a base cushion part 33, and further preferably has a lining material. Hereinafter, the base cushion part 33 provided on the sole 1 is referred to as the "sole base cushion part 33". Also, each cushion part provided on the sole 1 may be collectively referred to as the "sole cushioning material". For example, as shown in FIG. 6, the middle bottom part 13 has a first sheet 14, a second sheet 15, and a sole cushioning material (the sole base cushion part 33, the sub-cuboid cushion part 31, and the sub-heel cushion part 32) interposed between the first sheet 14 and the second sheet 15. The sole cushioning material will be described in detail in the following <Cushion Part>. In addition, when the sole 1 has an insole, instead of the middle bottom part 13, the sole cushioning material may be provided on the insole.

[0014] The first sheet 14 is a lining material with which the wearer's sole contacts. The second sheet 15 is connected to the upper surface of the midsole part 12 (when there is no midsole part 12, the upper surface of the outsole part 11) using joining means 16 such as an adhesive. By connecting the peripheral edges of the first sheet 14 and the second sheet 15 to each other by stitching or the like, a space is formed between the first sheet 14 and the second sheet 15, and the sole cushioning material is enclosed in the space. The first sheet 14 and the second sheet 15 are not particularly limited as long as they are sheet materials having flexibility and mechanical strength. For example, stretchable fabrics, non-stretchable fabrics, non-woven fabrics, synthetic resin sheets, foamed sheets (so-called sponge sheets are also included in the foamed sheets), and composite sheet materials obtained by laminating two or more of these are used. The first sheet 14 and the second sheet 15 may be made of the same material or different materials. For example, a stretchable fabric is used for the first sheet 14, and a composite sheet material composed of fabric / foamed sheet / fabric (a composite sheet material in which a foamed sheet is interposed between two fabrics) is used for the second sheet 15.

[0015] <Upper> The upper 2 is a component of the shoe that covers the instep and the heel, and preferably, it is a member that covers the instep including the toes and the heel. When roughly classified for each part corresponding to the wearer's foot, the upper 2 has, in order from the front side to the back side, a front foot part that generally covers the phalanges, a midfoot part that generally covers the metatarsal bones, the cuneiform bones, the navicular bone, and the cuboid bone, and a hindfoot part that generally covers the calcaneus bone. The upper edge of the midfoot part and the upper edge of the hindfoot part cooperate to define the opening of the shoe. In order to make the size of the opening variable, it is preferable that the part of the midfoot part that defines the opening is divided into two or more pieces. For example, the midfoot part is divided into two pieces, an outer piece 21 and an inner piece 22, and by expanding the interval between the outer piece 21 and the inner piece 22, the opening can be enlarged, and by narrowing the interval between the outer piece 21 and the inner piece 22, the opening can be reduced. Further, the upper 2 is provided with a tightening member 4 for adjusting the interval between the two or more pieces (for example, the interval between the outer piece 21 and the inner piece 22). The tightening member 4 is bridged across the inside and outside of the upper 2 along the inside-outside direction of the upper 2, and its first end 4a is connected to the inside of the upper 2, and its second end 4b (the end opposite to the first end) is connected to the outside of the upper 2. In order to maintain the medial longitudinal arch of the foot, it is preferable that the first end 4a of the tightening member 4 is connected to a position corresponding to the navicular bone of the wearer and is bridged across the inside and outside of the upper 2 while having a portion that overlaps the shopper joint of the wearer. By connecting the first end 4a of the tightening member 4 to a position corresponding to the navicular bone and connecting the second end 4b of the tightening member 4 to the outside of the upper 2, the tightening member 4 is bridged across the upper 2 in a tensioned state.

[0016] The Chopart joint is the joint between the cuboid bone and the navicular bone and the calcaneus bone and the talus bone, and the medial longitudinal arch is the arch that extends from the talus bone via the navicular bone to the first midfoot head. Since the navicular bone is located higher and medial to the cuboid bone, it tends to drop easily during foot contact with the ground during walking or in a standing position without walking (foot contact with the ground or standing position is simply referred to as the "standing position"). Since the first end portion 4a of the tightening member 4 is connected to the position corresponding to the navicular bone by joining means such as suturing and the tightening member 4 is installed so as to overlap the Chopart joint, the tightened tightening member 4 can suppress the dropping of the wearer's navicular bone by pulling up the navicular bone. For this reason, the medial longitudinal arch of the wearer wearing the shoe of the present invention can be maintained, and the foot of the wearer can be corrected to be in a neutral position (the neutral position is a state where the bones of the foot are in their original positions and there is no distortion in the skeletal structure) during the standing position.

[0017] The specific configuration of the tightening member 4 is not particularly limited. The tightening member 4 may be composed of, for example, a flat belt-like member or a string-like member. For example, the tightening member 4 includes a first belt-like body 41, a second belt-like body 42, a buckle 43 including a male type 431 and a female type 432 that engages with the male type 431, and may have a two-hole plate 44 or the like as necessary. The tightening member 4 may or may not have elasticity, but in the illustrated example, an elastic one is used. FIG. 9 shows a state where the tightening by the tightening member 4 is released. The first end of the first band 41 (the first end 4a of the fastening member 4) is connected by joining means such as suturing to a position corresponding to the navicular bone of the upper 2 or the mid-bottom 13, and the male type 431 of the buckle 43 is connected to the second end of the first band 41. Also, the end of the two-hole plate 44 is connected by joining means such as suturing to the end 21a of the outer piece 21 of the midfoot region. The second end of the second band 42 is connected by joining means such as suturing to the end 22a of the inner piece 22 of the midfoot region. After the second band 42 is inserted through the two holes of the two-hole plate 44 and reversed, the female type 432 of the buckle 43 is connected to its first end. According to such a configuration, the second end 4b of the fastening member 4 is equivalent to being connected to the outer piece 21 via the two-hole plate 44. For this reason, by engaging the male type 431 and the female type 432 to close the buckle 43, as shown in FIGS. 1 to 4, the fastening member 4 between the first end 4a and the second end 4b is in a tensioned state. Due to the tensioned state of the fastening member 4, the distance between the outer piece 21 and the inner piece 22 is narrowed and the opening width becomes smaller, and the midfoot region and the hindfoot region are in close contact with the wearer's talonavicular joint, and at the same time, the above-described effect of maintaining the medial longitudinal arch is achieved.

[0018] When the fastening member 4 has bands (for example, the first band 41 and the second band 42), the width of the bands is not particularly limited, but in order to lift a wide range near the navicular bone, it is preferably relatively wide. The width of the fastening member 4 (the widths of the first band 41 and the second band 42) is, for example, 15 mm or more, preferably 20 mm or more, and more preferably 25 mm or more. There is no particular upper limit to the width of the fastening member 4, but in practical values, it is 70 mm or less, preferably 60 mm or less. As described above, the first end 4a of the fastening member 4 is connected by suturing or the like to a position corresponding to the navicular bone. However, in the relatively wide fastening member 4, it is effective that the angle α formed by the connection point 4c of the first end 4a and the horizontal plane is 5 degrees or more and 85 degrees or less, preferably 40 degrees or more and 70 degrees or less (see FIG. 9 for the angle α).

[0019] As shown in FIG. 3, a stitch portion 23 extending in the inner and outer direction is formed at an intermediate portion in the vertical direction of the rear surface portion 27 of the rear foot portion of the upper 2. The stitch portion 23 is formed by stitching the first sheet 14 and the second sheet 15. In the illustrated example, as will be described later, since the upper 2 is composed of a combination of a plurality of parts, the stitch portion 23 is formed by stitching the edge of the first sheet 14 and the edge of the second sheet 15. However, depending on the shape of the parts constituting the upper 2, the stitch portion 23 may be formed by stitching within the plane of the first sheet 14 and the second sheet 15 (rather than by stitching the edges of the first and second sheets 14, 15). The stitch portion 23 is preferably formed corresponding to a position corresponding to the most protruding portion of the calcaneus (upper end of the talar eminence) or a position above it. By arranging the stitch portion 23 extending in the inner and outer direction at the most protruding portion of the calcaneus or a position above it, the extension of the rear surface portion 27 of the rear foot portion of the upper 2 can be suppressed. With this stitch portion 23 as a reference, an outer heel cushion portion 61A and an inner heel cushion portion 61B are arranged below the rear surface portion 27, and an outer auxiliary cushion portion 52A and an inner auxiliary cushion portion 52B are arranged above the rear surface portion 27. Note that instead of the stitch portion 23 formed by stitching, the same location as the stitch portion may be thermocompression bonded (not shown). Also, instead of or in combination with the stitch portion 23, a counter portion may be provided below the rear surface portion 27 (not shown). The counter portion is formed from a relatively hard and thin sheet material having excellent mechanical strength. By providing the counter portion in the lower portion of the rear surface portion 27 of the rear foot portion (between the stitch portion 23 in FIG. 3 and the sole 1), the same effect as that of the stitch portion 23 can be obtained.

[0020] Also, above the rear foot part of the upper 2, in the rear view shown in FIG. 3, with the vertical line passing through the shoe center axis as the reference line, two inner and outer protrusions 24A, 24B (outer protrusion 24A and inner protrusion 24B) are formed. Between the outer protrusion 24A and the inner protrusion 24B, there is a recessed part 25 that is recessed downward as it approaches the reference line. This recessed part 25 generally corresponds to the Achilles tendon and its upper part when the wearer puts on the shoes. The outer protrusion 24A extends forward in the side view shown in FIG. 1, and preferably extends obliquely forward and upward. A gap G with an open front is formed between the outer protrusion 24A extending forward and the side surface part 26 of the rear foot part. The inner protrusion 24B extends forward in the side view shown in FIG. 2, and preferably extends obliquely forward and upward. Similarly, a gap G with an open front is formed between the inner protrusion 24B extending forward and the side surface part 26 of the rear foot part. By each having the open gap G, the inner protrusion 24B and the outer protrusion 24A can swing following the movement of the wearer's ankle (the swing is indicated by the arrows in FIGS. 1 and 2). Also, the outline of the rear surface part 27 of the rear foot part of the upper 2 in the side view is inclined obliquely as shown in FIGS. 1 and 2. The angle β formed by the outline of the rear surface part 27 in the side view and the horizontal plane is not particularly limited as long as it is an acute angle. For example, it is 40 degrees or more and 80 degrees or less, and preferably 40 degrees or more and 60 degrees or less (see FIG. 2 for the angle β).

[0021] The upper 2 has an outer ankle cushion part 51A, an outer auxiliary cushion part 52A, an inner ankle cushion part 51B, and an inner auxiliary cushion part 52B. Preferably, it further has an outer heel cushion part 61A and an inner heel cushion part 61B, and more preferably has an instep cushion part 62. Also, in order to improve the wearing comfort of the wearer, it is preferable that the upper 2 is provided with a base cushion part 63. Hereinafter, the base cushion part 63 of the upper 2 is referred to as the "upper base cushion part 63", and each cushion part such as the inner ankle cushion part 51B provided on the upper 2 is collectively referred to as the "upper cushioning material". The upper cushioning material will be described in detail in <Cushion Part> below. The layer structure of the upper 2 may be a single-layer structure (excluding the upper cushioning material described above), or may be a multi-layer structure of two or more layers. The upper 2 preferably has the upper base cushioning portion 63 as described above, and preferably has a lining material and an exterior material. For example, as shown in FIGS. 5 to 8, the upper 2 has a first sheet 281, a second sheet 282, and an upper cushioning material interposed between the first sheet 281 and the second sheet 282. The first sheet 281 of the upper 2 serves as a lining material that comes into contact with the wearer's foot. The second sheet 282 of the upper 2 serves as an exterior material that constitutes the outer surface of the upper 2. By connecting the peripheral edges of the first sheet 281 and the second sheet 282 to each other by stitching or the like, a space is formed between the first sheet 281 and the second sheet 282, and upper cushioning materials such as the upper base cushioning portion 63 and the medial malleolus cushioning portion 51B are enclosed in the space. Regarding the first sheet 281 and the second sheet 282 that constitute the upper 2, since they are the same as the first sheet 14 and the second sheet 15 described in the column of <sole> above, please refer to that. However, the first sheet 281 and the second sheet 282 that constitute the upper 2 may be made of the same material as the first sheet 14 and the second sheet 15 that constitute the sole 1, or may be made of different materials independently.

[0022] <Cushioning portion> Depending on the type, the sole cushioning material and the upper cushioning material of the present invention follow the movement of the wearer's foot, closely adhere the shoe to the foot to improve the fit, improve the wearer's comfort, and further guide the foot to a neutral position. Each cushion part is formed of a massive elastic body having flexibility, flexibility and resilience. Each cushion part may be formed of one massive elastic body independently, or may be formed of a plurality of elastic bodies connecting two or more massive elastic bodies. The flexibility refers to the property of being easily deformed when an external force (load) is applied, and the resilience refers to the property of substantially returning to the original shape when the external force is removed. Examples of the massive elastic body include sponge and cotton-like masses in which fibers are laminated disorderly, and preferably, sponge is used. Sponge is a massive body having closed cells or open cells and having flexibility and resilience. Examples of the sponge include foams of synthetic resin, rubber, elastomer, and the like. As the sponge constituting the cushion part, for example, those having a hardness of 20 or more and 95 or less in F hardness, preferably 45 or more and 80 or less in F hardness can be used. The F hardness can be measured using an Asker rubber hardness tester type F (manufactured by Kobunshi Keiki Co., Ltd.). As will be described later, the cuboid bone cushion part 31 having a higher hardness than the heel cushion part 32 is configured using a sponge having a hardness exceeding the above range. Examples of the sponge having a hardness exceeding the range include sponges that are appropriately measured in C hardness (Asker rubber hardness tester type C (manufactured by Kobunshi Keiki Co., Ltd.)). The F hardness is suitable for measuring sponges that are softer than the C hardness.

[0023] [1] Sole cushioning material (heel cushion part 32, cuboid bone cushion part 31, sole base cushion part 33) The heel cushion part 32 is provided at the rear foot part including the rear edge of the sole 1, the cuboid bone cushion part 31 is provided at the midfoot part of the sole 1, and the sole base cushion part 33 is provided substantially over the entire sole 1 except for the range where the heel cushion part 32 and the cuboid bone cushion part 31 are provided. FIG. 10 is a plan view showing the positional relationship between the subcalcaneal cushion portion 32 and the cuboid bone cushion portion 31 and the foot bones for reference. FIG. 11 is a side view seen from the outside showing the positional relationship between the subcalcaneal cushion portion 32, the cuboid bone cushion portion 31, the lateral malleolus cushion portion 51A, the outer auxiliary cushion portion 52A, and the outer heel cushion portion 61A and the foot bones for reference. FIG. 12 is a side view seen from the inside showing the positional relationship between the subcalcaneal cushion portion 32, the medial malleolus cushion portion 51B, the inner auxiliary cushion portion 52B, and the inner heel cushion portion 61B and the foot bones for reference. In FIG. 10, the foot bones are represented by a one-dot chain line, the outline of the sole 1 is represented by a two-dot chain line, and each cushion portion is represented by a thick solid line. In FIGS. 11 and 12, the foot bones and the outline of the foot are represented by a one-dot chain line, the outline of the shoe 100 is represented by a two-dot chain line, and each cushion portion is represented by a thick solid line. In this specification, regarding the positional relationship between each cushion portion and the foot bones, the state where the wearer stands straight with the shoes on is taken as a reference. The sole cushioning material is in an uncompressed state as shown in FIG. 6 before the wearer puts on the shoes, but when the wearer puts on the shoes, a load is applied downward, so it becomes a compressed state. Based on this state, the lateral malleolus cushion portion 51A, the medial malleolus cushion portion 51B, the outer heel cushion portion 61A, and the inner heel cushion portion 61B are arranged so as to be in a predetermined position with respect to the foot bones.

[0024] 10 to 12, in terms of the relationship with the wearer's foot bones, the underheel cushion portion 32 is disposed corresponding to the lower part of the wearer's calcaneus, and the subcuboid cushion portion 31 is disposed corresponding to the lower part of the wearer's cuboid. In this embodiment, the hardness of the subcuboid cushion portion 31 is higher than that of the underheel cushion portion 32. The fact that the hardness of the subcuboid cushion portion 31 is higher than that of the underheel cushion portion 32 means that when a load is applied under the same conditions to the upper surface of the subcuboid cushion portion 31 and the upper surface of the underheel cushion portion 32 (each upper surface is a surface that comes into contact with the foot), the degree of compression of the subcuboid cushion portion 31 is clearly smaller than the degree of compression of the underheel cushion portion 32. From the viewpoint of effectively supporting the cuboid bone from below by the subcuboid cushion part 31, it is preferable to set the hardness difference between the two cushion parts 31, 32 so that the height difference when the two cushion parts 31, 32 are compressed by the wearer putting on the shoes is 2.5 mm to 4 mm, preferably 3 mm to 3.5 mm. By setting the height difference when compressed within the above range, the subcuboid cushion part 31 can support the cuboid bone from below without excessively pressing against the cuboid bone. The height difference refers to the drop between the uppermost end of the upper surface of the subcuboid cushion part 31 and the lowermost end of the upper surface of the subheel cushion part 32 in a side view when the subheel cushion part 32 and the subcuboid cushion part 31 are compressed. The subcuboid cushion part 31 and the subheel cushion part 32 having the above-mentioned hardness difference can be constructed by using massive elastic bodies having different hardnesses, such as sponges having different hardnesses.

[0025] Regarding the foot bones, the lower end of the cuboid bone is located above the lower end of the calcaneus bone, and the lateral longitudinal arch of the foot bones extends from the calcaneus bone via the cuboid bone to the fifth metatarsal head. When the wearer puts on shoes, a load is applied, so the subcalcaneal cushion portion 32 and the subcuboid cushion portion 31 are compressed and deformed as shown in FIGS. 11 and 12 from the state shown in FIG. 6. However, the subcuboid cushion portion 31 with high hardness has a smaller degree of compression than the subcalcaneal cushion portion 32. Therefore, when the wearer stands, the cuboid bone located above the calcaneus bone can be supported from below by the subcuboid cushion portion 31. By the support of the subcuboid cushion portion 31, each bone that bears the lateral longitudinal arch can be supported, and the foot of the wearer can be corrected to be in a neutral position when standing.

[0026] The planar shape of the subcalcaneal cushion portion 32 is, for example, as shown in FIG. 10, a substantially tongue shape defined by an arc edge along the arc edge shape of the rear foot portion of the sole 1 and a straight edge extending across the entire inside-outside direction. The planar shape of the subcuboid cushion portion 31 is a substantially triangular shape defined by a side edge along the outer edge shape of the rear foot portion of the sole 1 and an inclined edge extending in the inside-outside direction. Therefore, the length of the subcuboid cushion portion 31 in the front-rear direction becomes smaller from the outside to the inside. In the present embodiment, the subcuboid cushion portion 31 is formed up to the middle portion in the inside-outside direction (without reaching the inner edge of the sole 1). The subcalcaneal cushion portion 32 is disposed below the calcaneus bone and near the lower part of the talus bone. The subcuboid cushion portion 31 is disposed including the lower part of a part of the calcaneus bone from below the cuboid bone. It is preferable that the subcuboid cushion portion 31 does not overlap the rear part of the fifth metatarsal bone, and more preferably, it is arranged so as not to overlap the rear parts of the first to fifth metatarsal bones. Since the subcuboid cushion portion 31 is disposed below the cuboid bone without including the metatarsal bone, the cuboid bone can be effectively supported. As shown in Fig. 10, the cuboid bone lower cushion part 31 preferably includes a position that is 35% to 36% from the rear end edge when the total length of the shoe is taken as 100%. Note that the total length of the shoe is the length between the intersection of the front end edge 10a of the contour 10 in the plan view of the foot accommodation space and the shoe center axis L, and the intersection of the rear end edge 10b of the contour 10 in the plan view of the foot accommodation space and the shoe center axis L. In Fig. 10, the contour 10 is shown by a two-dot chain line.

[0027] Referring to Figs. 5 and 6, the second sheet 15 is connected to the sole part (midsole part 12) via a joining means 16 such as an adhesive, and a first massive elastic body 91 such as a sponge with a predetermined thickness is connected to the second sheet 15 via a joining means 17 such as an adhesive. A second massive elastic body 92 such as a sponge with a predetermined thickness is connected to the heel bone region of the first massive elastic body 91 via a joining means (not shown) such as an adhesive, and a third massive elastic body 93 such as a sponge with a predetermined thickness is connected to the cuboid bone region of the first massive elastic body 91 via a joining means (not shown) such as an adhesive. In this case, the sub-heel cushion part 32 is composed of the second massive elastic body 92 and the first massive elastic body 91 below it, the cuboid bone lower cushion part 31 is composed of the third massive elastic body 93 and the first massive elastic body 91 below it, and the sole base cushion part 33 is composed of only the first massive elastic body 91. And the upper surfaces of these respective cushion parts are covered by a first sheet 14 serving as a lining material, and the peripheral edges of the first sheet 14 and the second sheet 15 are connected by a joining means such as sewing. The first sheet 14 serving as a lining material may be connected to each cushion part, but from the viewpoint of wearing comfort, it is preferable that the first sheet 14 is not connected to each cushion part and can move independently with respect to each cushion part.

[0028] The thickness of the sub-heel cushion part 32 is appropriately set, for example, 3 mm or more and 25 mm or less, preferably 3 mm or more and 20 mm or less. Note that the thickness of the cuboid bone lower cushion part 31 is equal to or greater than the thickness of the sub-heel cushion part 32. The thickness of the sole base cushion part 33 is much smaller than that of the sub-heel cushion part 32, for example, 2 mm or more and 5 mm or less. The thickness of the sole cushioning material such as the underheel cushioning part 32 is based on the state when the wearer is not wearing the shoes (uncompressed state). In addition, when each cushioning part such as the underheel cushioning part 32 is formed of multiple elastic bodies in which two or more lump elastic bodies are connected, the thickness refers to the thickness of the multiple elastic bodies. For example, in the illustrated example, the underheel cushioning part 32 is composed of a second lump elastic body 92 and a first lump elastic body 91, and in this case, the thickness of the underheel cushioning part 32 is the sum of the thickness of the second lump elastic body 92 and the thickness of the first lump elastic body 91.

[0029] [2] Upper cushioning material (outer ankle cushion part 51A, outer auxiliary cushion part 52A, inner ankle cushion part 51B, inner auxiliary cushion part 52B, outer heel cushion part 61A, inner heel cushion part 61B, arch cushion part 62) The lateral ankle cushion portion 51A, the lateral auxiliary cushion portion 52A, the medial ankle cushion portion 51B, the medial auxiliary cushion portion 52B, the lateral heel cushion portion 61A and the medial heel cushion portion 61B are provided in the rear foot portion of the upper 2, the arch cushion portion 62 is provided in the midfoot portion of the upper 2, and the upper base cushion portion 63 is provided on substantially the entire upper 2 except for the area where each cushion portion such as the medial ankle cushion portion 51B is provided.

[0030] With reference to FIG. 11, in relation to the wearer's foot bones, the lateral malleolus cushion portion 51A is disposed corresponding to the lower part of the wearer's lateral malleolus in a side view. As shown in FIG. 1, the lateral malleolus cushion portion 51A is provided along the upper edge of the side surface portion 26 of the rear foot region of the upper 2 in a side view, and extends generally in the front-rear direction. The lateral malleolus cushion portion 51A is formed to be narrower toward its front end portion 511A. However, the lateral malleolus cushion portion 51A may have a substantially uniform width in the front-rear direction. The front end portion 511A of the lateral malleolus cushion portion 51A is formed in a pointed shape. However, the front end portion 511A of the lateral malleolus cushion portion 51A may be formed in an arc shape, for example. The outer auxiliary cushion part 52A extends obliquely upward from the rear side of the upper 2 in a side view. The front end part 521A of the outer auxiliary cushion part 52A extends above the outer ankle cushion part 51A so as to form a gap G between the outer auxiliary cushion part 52A and the outer ankle cushion part 51A. The outer ankle cushion part 51A and the outer auxiliary cushion part 52A may be independent of each other, but preferably, the outer ankle cushion part 51A and the outer auxiliary cushion part 52A are integrally formed. As shown in FIGS. 1 and 7, the outer auxiliary cushion part 52A is provided from the outer protruding part 24A of the upper 2 to the rear surface part 27 of the rear foot part. By providing the outer auxiliary cushion part 52A up to the rear surface part 27 in this way, it can support so as to wrap around the back of the outer ankle. As described above, the outer protruding part 24A of the upper 2 swings following the movement of the foot, and the outer auxiliary cushion part 52A can also follow the outer protruding part 24A. Therefore, as shown in FIG. 11, when the wearer wears the shoes, the outer auxiliary cushion part 52A moves slightly backward together with the outer protruding part 24A, and the gap G with the outer ankle cushion part 51A slightly expands. Referring to FIG. 11, in relation to the wearer's foot bone, the outer auxiliary cushion part 52A generally corresponds to the back and above the outer ankle of the wearer.

[0031] Since the outer ankle cushion part 51A supports the periphery of the lower part of the outer ankle (the periphery of the joint between the heel part and the fibula), the joint between the heel part and the fibula is stabilized. Also, when the foot moves, the outer ankle cushion part 51A compresses or elastically returns to closely adhere to the foot, so it is possible to prevent a space from occurring at the joint during walking. In addition, since the outer auxiliary cushion part 52A swings according to the movement of the ankle during walking, it is possible to prevent a space from occurring behind and above the outer ankle of the wearer even during walking. For this reason, it is possible to provide the shoes 100 with excellent fit.

[0032] The gap G formed between the outer ankle cushion part 51A and the outer auxiliary cushion part 52A is the space between the edge 512A of the facing outer ankle cushion part 51A and the edge 522A of the outer auxiliary cushion part 52A. The edge 522A of the outer auxiliary cushion part 52A forming the gap G extends obliquely forward and upward from the rear side in a side view (is inclined obliquely). Since the outer auxiliary cushion part 52A extends obliquely forward and upward, the outer auxiliary cushion part 52A is likely to closely adhere to the foot. The angle formed by the edge 522A of the outer auxiliary cushion part 52A forming the gap G and the horizontal plane is not particularly limited as long as it is an acute angle, but if it is too small, it may get in the way when wearing the shoes, and if it is too large, the support for the outer ankle by the outer auxiliary cushion part 52A (outer protruding part 24A) may decrease when wearing the shoes. From such a viewpoint, the angle γ formed by the edge 522A of the outer auxiliary cushion part 52A forming the gap G and the horizontal plane (refer to FIG. 1 for the angle γ) is, for example, 40 degrees or more and 80 degrees or less, preferably 40 degrees or more and 60 degrees or less. Note that since the outer auxiliary cushion part 52A can be deformed when the wearer walks while wearing the shoes, the position, shape, etc. of the outer auxiliary cushion part 52A are described based on the state when the wearer is not wearing the shoes (such as FIG. 1). The size of the gap G may be substantially uniform as it goes forward. In this case, the edge 512A of the outer ankle cushion part 51A and the edge 522A of the outer auxiliary cushion part 52A forming the gap G are substantially parallel as shown in FIG. 1. Note that the gap G may expand or narrow as it goes forward. In the illustrated example, the outer ankle cushion portion 51A and the outer auxiliary cushion portion 52A are integrally formed, and the edge 512A of the outer ankle cushion portion 51A and the edge 522A of the outer auxiliary cushion portion 52A form a substantially U shape to form the gap G. Since the outer ankle cushion portion 51A and the outer auxiliary cushion portion 52A are integrally formed and their edges form a substantially U shape to form the gap G, the outer auxiliary cushion portion 52A that moves following the movement of the foot is more likely to return to its original position. Specifically, when the outer auxiliary cushion portion 52A moves backward as the ankle tilts backward, the space between the integrally formed outer ankle cushion portion 51A and the outer auxiliary cushion portion 52A deforms. Then, when the ankle tilts forward, due to the restoring action accompanying the deformation, the outer auxiliary cushion portion 52A is more likely to move forward (more likely to return to its original position). Therefore, the outer auxiliary cushion portion 52A is more likely to follow the movement of the ankle, and it is possible to effectively prevent a space from being generated behind and above the outer ankle of the wearer. Hereinafter, the integrally formed outer ankle cushion portion 51A and the outer auxiliary cushion portion 52A may be collectively referred to as the "outer integrated cushion portion 7A".

[0033] Referring to FIG. 12, in relation to the wearer's foot bones, the inner ankle cushion portion 51B is arranged corresponding to the lower part of the wearer's inner ankle in a side view. As shown in FIG. 2, the inner ankle cushion portion 51B is provided along the upper edge of the side surface portion 26 of the rear foot portion of the upper 2 in a side view and extends substantially in the front-rear direction. The inner ankle cushion portion 51B is formed to be narrower toward its front end portion 511B. However, the inner ankle cushion portion 51B may have a substantially uniform width in the front-rear direction. Also, the front end portion 511B of the inner ankle cushion portion 51B is formed in a pointed shape. However, the front end portion 511B of the inner ankle cushion portion 51B may be formed in an arc shape or the like. The inner auxiliary cushion part 52B extends obliquely upward from the rear side of the upper 2 in a side view. The front end part 521B of the inner auxiliary cushion part 52B extends above the inner ankle cushion part 51B so as to form a gap G between the inner auxiliary cushion part 52B and the inner ankle cushion part 51B. The inner ankle cushion part 51B and the inner auxiliary cushion part 52B may be independent of each other, but preferably, the inner ankle cushion part 51B and the inner auxiliary cushion part 52B are integrally formed. As shown in FIGS. 2 and 7, the inner auxiliary cushion part 52B is provided from the inner protruding part 24B of the upper 2 to the rear surface part 27 of the rear foot part. By providing the inner auxiliary cushion part 52B up to the rear surface part 27 in this way, it is possible to support so as to wrap around the back of the inner ankle. As described above, the inner protruding part 24B of the upper 2 swings following the movement of the foot, and the inner auxiliary cushion part 52B can also follow the inner protruding part 24B. Therefore, as shown in FIG. 12, when the wearer wears the shoes, the inner auxiliary cushion part 52B moves slightly backward together with the inner protruding part 24B, and the gap G with the inner ankle cushion part 51B slightly expands. Referring to FIG. 12, in relation to the wearer's foot bones, the inner auxiliary cushion part 52B generally corresponds to the back and above the inner ankle of the wearer.

[0034] Since the inner ankle cushion part 51B supports the periphery of the lower part of the inner ankle (the periphery of the joint between the heel part and the tibia), the joint between the heel part and the tibia is stabilized. Also, when the foot moves, the inner ankle cushion part 51B compresses or elastically returns to adhere closely to the foot, so it is possible to prevent a space from occurring at the joint even during walking. Further, since the inner auxiliary cushion part 52B swings according to the movement of the foot during walking, it is possible to prevent a space from occurring behind and above the inner ankle of the wearer even during walking. For this reason, it is possible to provide the shoes 100 with excellent fit.

[0035] The gap G formed between the medial malleolus cushion portion 51B and the inner auxiliary cushion portion 52B is the space between the edge 512B of the opposing medial malleolus cushion portion 51B and the edge 522B of the inner auxiliary cushion portion 52B. The edge 522B of the inner auxiliary cushion portion 52B forming the gap G extends obliquely forward and upward from the rear side in a side view (is inclined obliquely). Since the inner auxiliary cushion portion 52B extends obliquely forward and upward, the inner auxiliary cushion portion 52B is likely to adhere closely to the foot. The angle formed by the edge 522B of the inner auxiliary cushion portion 52B forming the gap G and the horizontal plane is not particularly limited as long as it is an acute angle, but for the same reason as the outer auxiliary cushion portion 52A, for example, it is 40 degrees or more and 80 degrees or less, preferably 40 degrees or more and 60 degrees or less. Note that since the inner auxiliary cushion portion 52B can be deformed when the wearer walks while wearing the shoes, the position and shape of the inner auxiliary cushion portion 52B are described based on when the wearer is not wearing the shoes (such as in FIG. 2). The size of the gap G may be substantially uniform as it goes forward. In this case, the edge 512B of the medial malleolus cushion portion 51B and the edge 522B of the inner auxiliary cushion portion 52B forming the gap G are substantially parallel as shown in FIG. 2. Note that the gap G may expand or narrow as it goes forward. In the illustrated example, the medial malleolus cushion portion 51B and the inner auxiliary cushion portion 52B are integrally formed, and the edge 512B of the medial malleolus cushion portion 51B and the edge 522B of the inner auxiliary cushion portion 52B form the gap G in a substantially U shape. Since the medial malleolus cushion portion 51B and the inner auxiliary cushion portion 52B are integrally formed and their edges form a substantially U shape to form the gap G, for the same reason as the integrally formed outer malleolus cushion portion 51A and the outer auxiliary cushion portion 52A, the inner auxiliary cushion portion 52B that has moved following the movement of the foot is likely to return to its original position. For this reason, the inner auxiliary cushion portion 52B is more likely to follow the movement of the ankle, and it is possible to effectively prevent a space from occurring behind and above the medial malleolus of the wearer. Hereinafter, the integrally formed medial malleolus cushion portion 51B and the inner auxiliary cushion portion 52B may be collectively referred to as the "inner integrated cushion portion 7B".

[0036] The outer integrated cushion part 7A (the outer ankle cushion part 51A and the outer auxiliary cushion part 52A) and the inner integrated cushion part 7B (the inner ankle cushion part 51B and the inner auxiliary cushion part 52B) may be independent of each other, or may be connected via the connecting cushion part 64. In order to impart cushioning properties between the outer integrated cushion part 7A and the inner integrated cushion part 7B, it is preferable that the outer integrated cushion part 7A and the inner integrated cushion part 7B are connected via the connecting cushion part 64. FIG. 13 is a reference perspective view for three-dimensionally grasping the structures of the outer integrated cushion part 7A, the inner integrated cushion part 7B, the connecting cushion part 64, the outer heel cushion part 61A, and the inner heel cushion part 61B. This FIG. 13 depicts, for the sake of convenience, the rear foot part of the upper 2 which is substantially U-shaped in plan view and inclined in side view, opened and drawn in a planar manner, and is a reference view seen from the direction of arrow XIII in FIG. 6. The reference line in FIG. 13 generally corresponds to the reference line in FIG. 3.

[0037] Referring to FIGS. 6, 7 and 13, the connecting cushion portion 64 is interposed between the outer integral cushion portion 7A and the inner integral cushion portion 7B, connecting the two portions. The thickness of the connecting cushion portion 64 is smaller than the respective thicknesses of the outer integral cushion portion 7A and the inner integral cushion portion 7B. Where the connecting cushion portion 64 corresponds to the Achilles tendon of the wearer, due to the small thickness of the connecting cushion portion 64, it is possible to prevent the connecting cushion portion 64 (upper 2) from hitting the Achilles tendon excessively. In particular, the connecting cushion portion 64 preferably has a thickness difference in the vertical direction. For example, as shown in the illustrated example, the connecting cushion portion 64 preferably has a thin portion 641 extending from above downward and a thick portion 642 existing below the thin portion 641. Based on the thick portion 642, it can also be said that the thin portion 641 is formed by notching (for example, notching in a substantially V shape) a part of the thick portion 642 as shown in FIG. 13. The thin portion 641 of the connecting cushion portion 64 is provided over the entire vertical direction of the outer auxiliary cushion portion 52A and the inner auxiliary cushion portion 52B, or extends slightly downward beyond it. Since the upper part of the connecting cushion portion 64 is the thin portion 641, it becomes easier to curve the rear foot portion of the upper 2 along the reference line. In particular, since the upper part of the connecting cushion portion 64 is the thin portion 641 and the lower part is the thick portion 642, it is possible to prevent the connecting cushion portion 64 from hitting the Achilles tendon excessively. Incidentally, even when the outer integral cushion portion 7A (outer ankle cushion portion 51A and outer auxiliary cushion portion 52A) and the inner integral cushion portion 7B (inner ankle cushion portion 51B and inner auxiliary cushion portion 52B) are independent of each other, no cushion portion is interposed between the two portions 7A, 7B, and it is possible to prevent the upper 2 from hitting the Achilles tendon excessively.

[0038] Referring to FIG. 11, in relation to the foot bones of the wearer, the outer heel cushion portion 61A is arranged corresponding to the upper outer side of the wearer's heel bone in a side view. As shown in FIG. 1, the outer heel cushion portion 61A is provided between the outer integrated cushion portion 7A and the under - heel cushion portion 32 in a side view and extends generally in the front - rear direction. The outer heel cushion portion 61A is preferably formed to be narrower toward its front end portion 611A. Further, the front end portion 611A of the outer heel cushion portion 61A is formed in a pointed shape. However, the front end portion 611A of the outer heel cushion portion 61A may be formed in an arc shape or the like. Also, as shown in FIGS. 1, 3, and 8, the outer heel cushion portion 61A is provided from the side surface portion 26 to the rear surface portion 27 of the rear - foot portion of the upper 2. By providing the outer heel cushion portion 61A from the side surface portion 26 to the rear surface portion 27 in this way, it can support so as to wrap the upper outer part of the calcaneus. As shown in FIG. 3, the outer heel cushion portion 61A is preferably formed to be narrower toward its rear end portion 612A. Further, the rear end portion 612A of the outer heel cushion portion 61A is formed in a pointed shape. However, the rear end portion 612A of the outer heel cushion portion 61A may be formed in an arc shape or the like.

[0039] The outer heel cushion portion 61A supports the upper part of the outer heel, and also when the foot moves, the outer heel cushion portion 61A compresses or elastically returns and adheres to the foot, so that it is possible to prevent a space from being generated between the wearer's calcaneus and the shoe during walking. For this reason, it is possible to provide the shoe 100 with excellent fit. From the viewpoint of making it difficult to generate a space around the calcaneus and preventing the outer heel cushion portion 61A from hitting the calcaneus excessively, as shown in FIG. 11, the outer heel cushion portion 61A is preferably arranged above the most protruding part of the wearer's calcaneus in a side view. In other words, the outer heel cushion portion 61A is preferably arranged corresponding to the upper outer part of the calcaneus so as not to overlap the most protruding part of the calcaneus.

[0040] Referring to FIG. 12, in relation to the wearer's foot bones, the inner heel cushion portion 61B is arranged corresponding to the upper inner part of the wearer's calcaneus in a side view. As shown in Fig. 2, the inner heel cushion portion 61B is provided between the inner integrated cushion portion 7B and the under - heel cushion portion 32 in a side view and extends generally in the front - rear direction. The inner heel cushion portion 61B is preferably formed to be narrower toward its front end portion 611B. Also, the front end portion 611B of the inner heel cushion portion 61B is formed in a pointed shape. However, the front end portion 611B of the inner heel cushion portion 61B may be formed in an arc shape or the like. Also, as shown in Figs. 2, 3 and 8, the inner heel cushion portion 61B is provided from the side surface portion 26 to the rear surface portion 27 of the rear - foot portion of the upper 2. By providing the inner heel cushion portion 61B from the side surface portion 26 to the rear surface portion 27 in this way, it can support so as to wrap the upper inner part of the calcaneus. As shown in Fig. 3, the inner heel cushion portion 61B is preferably formed to be narrower toward its rear end portion 612B. Also, the rear end portion 612B of the inner heel cushion portion 61B is formed in a pointed shape. However, the rear end portion 612B of the inner heel cushion portion 61B may be formed in an arc shape or the like.

[0041] The inner heel cushion portion 61B supports the upper part of the inner heel. Also, when the foot moves, the inner heel cushion portion 61B compresses or elastically returns to adhere to the foot, so that it is possible to prevent a space from being generated between the wearer's calcaneus and the shoe even during walking. For this reason, it is possible to provide the shoe 100 with excellent fit. From the viewpoint of making it difficult to generate a space around the calcaneus and preventing the inner heel cushion portion 61B from hitting the calcaneus excessively, as shown in Fig. 12, the inner heel cushion portion 61B is preferably arranged above the most protruding portion of the wearer's calcaneus in a side view. In other words, the inner heel cushion portion 61B is preferably arranged corresponding to the upper inner part of the calcaneus so as not to overlap the most protruding portion of the calcaneus.

[0042] When the outer heel cushion portion 61A and the inner heel cushion portion 61B extend to the rear surface portion 27 of the rear foot portion of the upper 2, the rear end portions 612A and 612B of the outer heel cushion portion 61A and the inner heel cushion portion 61B may be connected to each other. However, from the viewpoint of preventing excessive contact below the Achilles tendon, the outer heel cushion portion 61A and the inner heel cushion portion 61B are independent of each other, or the outer heel cushion portion 61A and the inner heel cushion portion 61B are preferably connected via a connecting cushion portion having a smaller thickness than them. For example, as shown in FIGS. 8 and 13, the outer heel cushion portion 61A and the inner heel cushion portion 61B are connected via an upper base cushion portion 63 having a smaller thickness than them. That is, the upper base cushion portion 63 between the outer heel cushion portion 61A and the inner heel cushion portion 61B corresponds to a connecting cushion portion that connects the outer heel cushion portion 61A and the inner heel cushion portion 61B.

[0043] In addition, the outer heel cushion portion 61A is independent of any of the inner ankle cushion portion 51B, the inner auxiliary cushion portion 52B, the outer ankle cushion portion 51A, and the outer auxiliary cushion portion 52A, or is connected to at least one selected from these portions 51B, 52B, 51A, 52A via a connecting cushion portion having a smaller thickness than the outer heel cushion portion 61A. The inner heel cushion portion 61B is independent of any of the inner ankle cushion portion 51B, the inner auxiliary cushion portion 52B, the outer ankle cushion portion 51A, and the outer auxiliary cushion portion 52A, or is connected to at least one selected from these portions 51B, 52B, 51A, 52A via a connecting cushion portion having a smaller thickness than the inner heel cushion portion 61B. By being connected to each other independently or via a connecting cushion portion having a smaller thickness in this way, the outer heel cushion portion 61A and the inner heel cushion portion 61B can appropriately support the outer ankle and the inner ankle and the calcaneus at the outer heel cushion portion 61A and the inner heel cushion portion 61B without being affected by the cushion portions 51B, 52B, 51A, 52A. In the illustrated example, there is a region without a cushion part (for example, the stitch part 23) between the outer heel cushion part 61A and the inner heel cushion part 61B and each of the cushion parts 51B, 52B, 51A, 52A, and the outer heel cushion part 61A, the inner heel cushion part 61B, and each of the cushion parts 51B, 52B, 51A, 52A are independent of each other.

[0044] The instep cushion part 62 is disposed corresponding to the instep of the upper 2. The instep cushion part 62 is provided from the midfoot part to a part of the forefoot part of the upper 2. Note that the instep is the part extending from the sole to the inside, and the instep cushion part 62 is strictly provided from the sole 1 to the upper 2. By providing the instep cushion part 62, the inner longitudinal arch can be effectively maintained in cooperation with the fastening member 4.

[0045] 5 to 8, a fourth lump of elastic body 94 such as a sponge of a predetermined thickness is connected to the second sheet 282, which serves as the exterior material, via a joining means 29 such as an adhesive. A fifth lump of elastic body 95 such as a sponge of a predetermined thickness is connected to the fourth lump of elastic body 94 in the areas where the outer integrated cushion portion 7A and the inner integrated cushion portion 7B are formed via a joining means such as an adhesive (not shown). A sixth lump of elastic body 96 such as a sponge of a predetermined thickness is connected to the fourth lump of elastic body 94 in the areas where the outer heel cushion portion 61A and the inner heel cushion portion 61B are formed via a joining means such as an adhesive (not shown). And a seventh lump of elastic body 97 such as a sponge of a predetermined thickness is connected to the fourth lump of elastic body 94 in the area where the arch cushion portion 62 is formed via a joining means such as an adhesive (not shown). In this case, the outer integrated cushion portion 7A and the inner integrated cushion portion 7B are composed of the fourth lump elastic body 94 and the fifth lump elastic body 95, the outer heel cushion portion 61A and the inner heel cushion portion 61B are composed of the fourth lump elastic body 94 and the sixth lump elastic body 96, the arch cushion portion 62 is composed of the fourth lump elastic body 94 and the seventh lump elastic body 97, the connected cushion portion 64 is composed of the partially cut-out fourth lump elastic body 94, and the upper base cushion portion 63 is composed only of the fourth lump elastic body 94. Each of these cushion portions is covered with a first sheet 281 which serves as a lining material, and the peripheral portions of the first sheet 281 and the second sheet 282 are connected by a joining means such as sewing. The first sheet 281, which serves as the lining material, may be connected to each cushion portion; however, from the standpoint of comfort, it is preferable that the first sheet 281 is not connected to each cushion portion and can move independently relative to each cushion portion. The lump elastic body (cushion portion) may be connected to the first sheet 281 via a joining means such as an adhesive.

[0046] The thicknesses of the lateral ankle cushion portion 51A, the lateral auxiliary cushion portion 52A, the medial ankle cushion portion 51B, and the medial auxiliary cushion portion 52B (the lateral integrated cushion portion 7A and the medial integrated cushion portion 7B) are appropriately set, and are, for example, independently 15 mm or more and 30 mm or less. The thickness of the connecting cushion portion 64 is smaller than the thickness of the lateral ankle cushion portion 51A and the like, as described above. The thickness of the thin wall portion 641 of the connecting cushion portion 64 is preferably 0.8 times or less the thickness of the lateral ankle cushion portion 51A and the like, and the thickness of the thick wall portion 642 is preferably 0.9 times or less the thickness of the lateral ankle cushion portion 51A and the like. The thicknesses of the lateral heel cushion portion 61A and the medial heel cushion portion 61B are, for example, 15 mm or more and 30 mm or less. The thickness of the arch cushion portion 62 is, for example, 20 mm or more and 50 mm or less. The thickness of the upper base cushion portion 63 is, for example, not less than 3 mm and not more than 10 mm. The thickness of the upper cushioning material such as the lateral ankle cushion part 51A is based on the state when the wearer is not wearing the shoes (uncompressed state). In addition, when each cushion part such as the lateral ankle cushion part 51A is formed of multiple elastic bodies in which two or more lump elastic bodies are connected, the thickness refers to the thickness of the multiple elastic bodies. For example, in the illustrated example, the lateral ankle cushion part 51A is composed of a fourth lump elastic body 94 and a fifth lump elastic body 95, and in this case, the thickness of the lateral ankle cushion part 51A is the sum of the thickness of the fourth lump elastic body 94 and the thickness of the fifth lump elastic body 95.

[0047] Fig. 14 is a reference perspective view showing the parts forming the upper 2 and the sole 1 in an expanded form, and Fig. 15 is a reference plan view showing the parts in an expanded form. However, Figs. 14 and 15 do not show the parts forming the fastening member 4, and further do not show the parts forming the outsole portion 11 and the midsole portion 12 of the sole 1. Referring to FIG. 14, the parts group P1 includes a part P1-1 made of a first sheet formed in a predetermined shape, a part P1-2 made of a second sheet formed in a predetermined shape, and a part P1-3 made of the upper base cushion portion 63. The parts group P1 is assembled by connecting the peripheral edges of the part P1-1 and the part P1-2 by stitching or the like with the part P1-3 interposed therebetween. The parts group P1 forms a part of the front foot portion and the middle foot portion of the upper 2. The parts group P2 includes a part P2-1 made of a first sheet formed in a predetermined shape, a part P2-2 made of a second sheet formed in a predetermined shape, and a part P2-3 made of the underheel cushion portion 32, the sub-cuboid cushion portion 31, the sole base cushion portion 33, the outer heel cushion portion 61A, the inner heel cushion portion 61B, and the upper base cushion portion 63. The parts group P2 is assembled by connecting the peripheral edges of the part P2-1 and the part P2-2 by stitching or the like with the part P2-3 interposed therebetween. The parts group P2 forms the middle bottom portion 13 of the sole 1, a part of the middle foot portion of the upper 2, and the lower portion of the rear foot portion. The parts group P3 includes a part P3-1 made of a first sheet formed in a predetermined shape, a part P3-2 made of a second sheet formed in a predetermined shape, and a part P3-3 made of the outer integrated cushion portion 7A, the inner integrated cushion portion 7B, the connecting cushion portion 64, the instep cushion portion 62, and the upper base cushion portion 63. The parts group P3 is assembled by connecting the peripheral edges of the part P3-1 and the part P3-2 by stitching or the like with the part P3-3 interposed therebetween. The parts group P3 forms a part of the middle foot portion of the upper 2 and the upper portion of the rear foot portion.

[0048] Figure 15 shows the connection points between the assembled part groups P1, P2, and P3. The edge connecting points x1, x2, and x3 is connected to the edge connecting points y9, y8, and y7 by stitching or the like. The edge connecting points x6, x5, x4, and x3 is connected to the edge connecting points z1, z2, z3, and z4 by stitching or the like. The edge connecting points x1 and x6 is connected to the edge connecting points y9 and y10 by stitching or the like. The edge connecting points y7, y6, and y5 is connected to the edge connecting points z4, z5, and z6 by stitching or the like. The edge connecting points y5, y4, and y3 is connected to the edge connecting points y1, y2, and y3 by stitching or the like. The edge connecting points y1, y12, and y11 is connected to the edge connecting points z6, z7, and z8 by stitching or the like. By connecting the assembled part groups P1, P2, and P3 in this way, a part (the mid-sole 13) of the upper 2 and the sole 1 can be formed. It should be noted that the parts in FIGS. 14 and 15 are merely examples, and the parts forming the upper 2 and the sole 1 of the present invention can adopt various shapes and combinations.

[0049] As described above, in the shoe 100 of the present invention, the outer ankle cushion part 51A and the inner ankle cushion part 51B support the lower part of the outer ankle and the lower part of the inner ankle, and the outer auxiliary cushion part 52A and the inner auxiliary cushion part 52B support the rear and upper parts of the outer ankle. Since the outer auxiliary cushion part 52A and the inner auxiliary cushion part 52B have a gap G opened in the front and are arranged with respect to the outer ankle cushion part 51A and the inner ankle cushion part 51B, the outer auxiliary cushion part 52A and the inner auxiliary cushion part 52B swing according to the movement of the ankle. Therefore, when the foot moves during walking, it is difficult to generate a space between the ankle periphery and the shoe, and a shoe 100 with excellent fit even during walking can be provided.

[0050] Next, another embodiment of the present invention will be described. In this description, mainly the configurations and effects different from those of the above-described embodiment will be described. For the same configurations and the like, the terms may be directly adopted as they are, and the description of the configurations may be omitted. Therefore, for the configurations not particularly described in detail in the following several other embodiments, it is assumed that the configurations described in the first embodiment can be adopted.

[0051] [Second Embodiment] In the first embodiment above, the case where the sub-cuboid cushion portion 31 has a higher hardness than the sub-malleolar cushion portion 32 and the thickness of the sub-malleolar cushion portion 32 and the thickness of the sub-cuboid cushion portion 31 are substantially the same was exemplified. However, the sub-cuboid cushion portion 31 may protrude above the sub-malleolar cushion portion 32. FIG. 16 shows the shoe 100 of the second embodiment. Referring to FIG. 16, the upper surface of the sub-cuboid cushion portion 31 is located above the upper surface of the sub-malleolar cushion portion 32. Therefore, the sub-cuboid cushion portion 31 protrudes above the sub-malleolar cushion portion 32. The degree of protrusion of the sub-cuboid cushion portion 31 is appropriately set. The difference in height between the upper surface of the sub-cuboid cushion portion 31 and the upper surface of the sub-malleolar cushion portion 32 is, for example, 2.5 mm or more and 4 mm or less, preferably 3 mm or more and 3.5 mm or less. Note that the difference in height is based on the state where the wearer is not wearing the shoes (non-compressed state).

[0052] By using the sub-cuboid cushion portion 31 having a thickness larger than the thickness of the sub-malleolar cushion portion 32, a sub-cuboid cushion portion 31 protruding above the sub-malleolar cushion portion 32 can be configured. For example, the sub-cuboid cushion portion 31 having a thickness of 3 mm or more and 25 mm or less is used, and the sub-malleolar cushion portion 32 having a thickness smaller by the difference in height than the thickness of the sub-cuboid cushion portion 31 is used. In addition, a sub-cuboid cushion part 31 having substantially the same thickness as the heel cushion part 32 can also be used. When using the sub-cuboid cushion part 31 with substantially the same thickness, by arranging a bottom-lifting spacer below the sub-cuboid cushion part 31, the sub-cuboid cushion part 31 can be made to protrude above the heel cushion part 32. Even when using the sub-cuboid cushion part 31 that protrudes upward as in this embodiment, similar to the first embodiment, the cuboid bone located above the lower end of the calcaneus can be supported from below by the sub-cuboid cushion part 31. Therefore, each bone that bears the lateral longitudinal arch can be supported, and the foot of the wearer can be corrected to be in a neutral position during standing.

[0053] In this embodiment, the hardness of the sub-cuboid cushion part 31 may be substantially the same as or higher than the hardness of the heel cushion part 32. Since it becomes easier to design the degree of protrusion of the sub-cuboid cushion part 31, it is preferable that the hardness of the sub-cuboid cushion part 31 and the hardness of the heel cushion part 32 are substantially the same.

[0054] [Third Embodiment] In the first embodiment above, the sub-cuboid cushion part 31 does not reach the inner edge of the sole 1. However, for example, as shown in FIG. 17, the sub-cuboid cushion part 31 may extend across the entire inner and outer direction of the sole 1. In this case, it is preferable that the length of the sub-cuboid cushion part 31 in the front-rear direction becomes smaller from the outside to the inside. Also in this embodiment, since the cuboid bone can be supported by the sub-cuboid cushion part 31, the lateral longitudinal arch can be assisted. In addition, when the sub-cuboid cushion part 31 extends across the entire inner and outer direction, the inner side of the sub-cuboid cushion part 31 will support the navicular bone from below. Since it can prevent excessive pushing up on the plantar fascia, the sub-cuboid cushion part 31 that can support the lower part of the cuboid bone without substantially overlapping the lower part of the navicular bone as in the first embodiment is preferable.

[0055] [Fourth Embodiment] In the above-described first embodiment, the shoe in which the midfoot portion of the upper 2 is divided into two pieces (outer piece 21 and inner piece 22) was exemplified, but the present invention is not limited thereto. For example, as shown in FIG. 18, a shoe 100 may be provided in which a throat portion 261 is formed in the midfoot portion of the upper 2, and a shooter portion 262 that closes the throat portion 261 is provided. Further, as shown in FIG. 19, a shoe 100 may be provided in which a throat portion 263 is provided in the midfoot portion of the upper 2, and a shooter portion 266 is provided that closes the throat portion 263 and is composed of two pieces 264 and 265 divided along the front-rear direction. The structure of FIG. 19 is also called a split tongue. Furthermore, a shoe in which the midfoot portion of the upper 2 is not divided may be used (not shown). A structure in which the midfoot portion is not divided is also called a monosock. In FIGS. 18 and 19, the fastening member is omitted. Also for these shoes 100, by providing a fastening member, the size of the opening can be made variable, and further, by pulling up the navicular bone by the fastening member, the inner longitudinal arch of the wearer can be maintained.

[0056] [Fifth Embodiment] In the above-described first embodiment, the buckle 43 was exemplified as the fixing method of the fastening member 4, but the present invention is not limited thereto, and a conventionally known method can be adopted as the fixing method. For example, as shown in FIG. 20, the fastening member 4 may be in a tensioned state by engagement using a hook-and-loop fastener 45. In FIG. 20, a hook-and-loop fastener 45 is provided between the first belt-like body 41 and the second belt-like body 42. Note that the fastening member 4 is not limited to the case of being composed of two belt-like bodies as described above, and may be composed of, for example, one belt-like body (not shown). In this case, for example, the first end portion (the first end portion of the fastening member) of the one belt-like body is connected corresponding to the navicular bone, a hook-and-loop fastener is provided at the second end portion (the second end portion of the fastening member) of the belt-like body, and by engaging the hook-and-loop fastener with the outer piece 21 of the upper 2, the fastening member 4 can be stretched in a tensioned state. Also, as shown in FIG. 21, the fastening member 4 may be in a tensioned state by joining using a fastener 46. In FIG. 21, the fastening member 4 is composed of a single strip, and its first end is connected corresponding to the navicular bone. The second end 4b of the fastening member 4 is joined to the end 21a of the outer piece 21 of the upper 2 via a fastener 46. Furthermore, as shown in FIGS. 22 and 23, the fastening member 4 may be a string-like body. By passing the string-like body of the fastening member 4 partially through a position corresponding to the navicular bone, the navicular bone can be lifted by the fastening member 4, and the inner longitudinal arch of the wearer can be maintained. For example, in FIGS. 22 and 23, the fastening member 4 is a shoe lace 47. FIGS. 22 and 23 illustrate the upper 2 having the structure shown in FIG. 18 (the structure having the throat part 261 and the shooter part 262). A plurality of shoe hole parts 48 are provided at intervals in the front-rear direction on the lower outer side and the lower inner side of the upper 2. By sequentially passing the shoe lace 47 through each of these shoe hole parts 48 and tightening the shoe lace 47, the size of the opening part can be changed. Also, as shown in FIG. 23, a separate shoe hole part 48' is provided at a position corresponding to the navicular bone of the upper 2, and by hanging the shoe lace 47 on the shoe hole part 48' and passing it through, the navicular bone can be lifted by the fastening member 4. Also, as a fixing method of the fastening member 4, tightening using a D-ring (D-ring) or the like may be adopted (not shown).

[0057] [Sixth Embodiment] In the first embodiment described above, the stitch part 23 extending in the inner-outer direction is formed. In combination with this or instead of this, as shown in FIG. 24, a stitch part 231 extending in the vertical direction may be formed on the rear surface part 27 of the upper 2. In addition, in the above-described first embodiment, each cushion portion is interposed between the upper 2 and the middle bottom portion 13 with two sheet materials (the first sheet 14 and the second sheet 15). However, for example, one sheet material may be folded back and each cushion portion may be disposed therebetween. In this case, the upper 2 and the middle bottom portion 13 can be configured by connecting appropriate portions by sewing or the like except for the folded-back portion of the one sheet material.

[0058] [Others] The description of each of the above-described embodiments includes the following aspects. In the shoe, the inner ankle cushion portion and the inner auxiliary cushion portion are independent of the outer ankle cushion portion and the outer auxiliary cushion portion, or are connected to the outer ankle cushion portion and the outer auxiliary cushion portion via a connecting cushion portion having a smaller thickness than those cushion portions. With such a configuration, it is possible to prevent the upper from excessively hitting the Achilles tendon of the wearer.

[0059] In the shoe, the inner auxiliary cushion portion has an edge forming a gap, the edge of the inner auxiliary cushion portion extends obliquely forward and upward from the rear side in a side view, the outer auxiliary cushion portion has an edge forming the gap, and the edge of the outer auxiliary cushion portion extends obliquely forward and upward from the rear side in a side view. Since the inner auxiliary cushion portion and the outer auxiliary cushion portion extend obliquely forward and upward from the rear side in a side view, the inner auxiliary cushion portion and the outer auxiliary cushion portion are likely to follow the movement of the wearer's ankle and closely adhere to the foot. Therefore, it is possible to prevent a space from being generated behind and above the wearer's ankle even during walking.

[0060] In the shoe, the inner ankle cushion part and the inner auxiliary cushion part are integrally formed, and the edges of the inner ankle cushion part and the inner auxiliary cushion part form a substantially U shape to form the gap. The outer ankle cushion part and the outer auxiliary cushion part are integrally formed, and the edges of the outer ankle cushion part and the outer auxiliary cushion part form a substantially U shape to form the gap. With such a configuration, the inner auxiliary cushion part and the outer auxiliary cushion part that move following the movement of the foot are likely to return to their original positions. For this reason, the inner auxiliary cushion part and the outer auxiliary cushion part are more likely to follow the movement of the ankle, and it is possible to effectively prevent a space from being generated behind and above the ankle of the wearer.

[0061] In the shoe, the upper has an inner heel cushion part and an outer heel cushion part arranged corresponding to the upper inner part and the upper outer part of the wearer's calcaneus, and the inner heel cushion part and the outer heel cushion part are independent of any of the inner ankle cushion part, the inner auxiliary cushion part, the outer ankle cushion part, and the outer auxiliary cushion part, or are connected to at least one selected from them via a connecting cushion part with a small thickness. By being independent of each other or connected via a connecting cushion part with a small thickness, the outer heel cushion part and the inner heel cushion part can appropriately support the outer ankle, the inner ankle, and the calcaneus without being affected by the inner ankle cushion part or the like.

[0062] In the shoe, the sole has a sub-heel cushion part arranged corresponding to the wearer's calcaneus, and a sub-cuboid cushion part arranged corresponding to the wearer's cuboid bone and protruding above the sub-heel cushion part. The sub-cuboid cushion part protruding upward can support the cuboid bone located above the lower end of the calcaneus from below. By such a sub-cuboid cushion part, each bone responsible for the outer longitudinal arch can be supported, and the foot of the wearer can be corrected to be in a neutral position when standing.

[0063] In the shoe, the sole has a sub-heel cushion portion disposed corresponding to the calcaneus of the wearer, and a sub-cuboid cushion portion disposed corresponding to the cuboid bone of the wearer and having a higher hardness than the sub-heel cushion portion. The sub-cuboid cushion portion with a higher hardness has a smaller degree of compression than the sub-heel cushion portion when a load is applied to the wearer. Therefore, when the wearer is standing, the cuboid bone located above the calcaneus can be supported from below by the sub-cuboid cushion portion. With such a sub-cuboid cushion portion, each bone that bears the lateral longitudinal arch can be supported, and the foot of the wearer can be corrected to be in a neutral position when standing.

[0064] In the shoe, it has a fastening member provided on the upper, and the first end portion of the fastening member is connected to a position corresponding to the navicular bone of the wearer. The fastening member has a portion overlapping the Chopart joint of the wearer and is bridged over the upper in a tensioned state. By the tensioned fastening member pulling up the navicular bone of the wearer, the dropping of the navicular bone can be suppressed. Therefore, the medial longitudinal arch of the wearer wearing the shoe can be maintained, and the foot of the wearer can be corrected to be in a neutral position when standing.

Explanation of Reference Numerals

[0065] 100 Shoe 1 Sole 2 Upper 31 Sub-cuboid cushion portion 32 Sub-heel cushion portion 51A Lateral malleolus cushion portion 52A Lateral auxiliary cushion portion 51B Medial malleolus cushion portion 52B Medial auxiliary cushion portion 61A Lateral heel cushion portion 61B Medial heel cushion portion 64 Connecting cushion portion

Claims

1. In a shoe having a sole and an upper provided above the sole, the upper has an inner ankle cushion portion disposed corresponding to the lower part of the wearer's inner ankle, a portion disposed corresponding to the rear of the wearer's inner ankle, extending from the rear side of the upper obliquely upward, and having a front end extending above the inner ankle cushion portion so as to form a gap with the inner ankle cushion portion in a side view, an inner auxiliary cushion portion, an outer ankle cushion portion disposed corresponding to the lower part of the wearer's outer ankle, a portion disposed corresponding to the rear of the wearer's outer ankle, extending from the rear side of the upper obliquely upward, and having a front end extending above the outer ankle cushion portion so as to form a gap with the outer ankle cushion portion in a side view, an outer auxiliary cushion portion, a shoe.

2. The shoe according to claim 1, wherein the inner ankle cushion portion and the inner auxiliary cushion portion are independent of the outer ankle cushion portion and the outer auxiliary cushion portion, or are connected to the outer ankle cushion portion and the outer auxiliary cushion portion via a connecting cushion portion having a smaller thickness than those cushion portions.

3. The inner auxiliary cushion portion has an edge forming the gap, and the edge of the inner auxiliary cushion portion extends obliquely upward from the rear side in a side view, The shoe according to claim 1 or 2, wherein the outer auxiliary cushion portion has an edge forming the gap, and the edge of the outer auxiliary cushion portion extends obliquely upward from the rear side in a side view.

4. The inner ankle cushion portion and the inner auxiliary cushion portion are integrally formed, and the edges of the inner ankle cushion portion and the inner auxiliary cushion portion form a substantially U shape to form the gap, The shoe according to any one of claims 1 to 3, wherein the outer ankle cushion portion and the outer auxiliary cushion portion are integrally formed, and the edges of the outer ankle cushion portion and the outer auxiliary cushion portion form a substantially U shape to form the gap.

5. The upper has an inner heel cushion portion and an outer heel cushion portion disposed corresponding to the upper inner side and the upper outer side of the wearer's calcaneus, The inner heel cushion portion and the outer heel cushion portion are independent of any of the inner ankle cushion portion, the inner auxiliary cushion portion, the outer ankle cushion portion, and the outer auxiliary cushion portion, or are connected to at least one selected from them via a connecting cushion portion having a small thickness. The shoe according to any one of claims 1 to 4.

6. The sole has a sub-heel cushion portion disposed corresponding to the calcaneus of the wearer, and a sub-cuboid cushion portion disposed corresponding to the cuboid bone of the wearer and protruding upward from the sub-heel cushion portion. The shoe according to any one of claims 1 to 5.

7. The sole has a sub-heel cushion portion disposed corresponding to the calcaneus of the wearer, and a sub-cuboid cushion portion disposed corresponding to the cuboid bone of the wearer and having a higher hardness than the sub-heel cushion portion. The shoe according to any one of claims 1 to 6.

8. Furthermore, it has a fastening member provided on the upper, The first end portion of the fastening member is connected to a position corresponding to the navicular bone of the wearer, and the fastening member is bridged over the upper in a tensioned state while having a portion overlapping the Chopart joint of the wearer. The shoe according to any one of claims 1 to 7.

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