Abstract: In the stable posture, in which path length from the origin to the distal end is L, intersection between the sole bottom surface and line perpendicular to the reference line through position of 0.45×L is C, intersection between the sole bottom surface and line perpendicular to the reference line through position of 0.60×L is D, and sole is in contact with the ground at points C and D, the sole bottom surface at the heel portion is separated from the ground to be in a heel-up state, and an inequality, ??5 is satisfied wherein ? is an angle formed by the ground and line that connects the heel central position of 0.15×L with the metatarsophalangeal joints position of 0.68×L. The sole compressive rigidity is relatively lower at the heel-up starting position than at the metatarsophalangeal joints position.

Abstract: Each of midsoles of a plurality of types of soles that constitute a sole series includes an upper midsole and a corresponding one of lower midsoles. Each of the plurality of types of soles is configured such that, in a non-wearing state, while the sole contacts ground at an intersection, a heel region does not contact the ground. While the upper midsoles of the plurality of types of soles are formed to have the same shape, the lower midsoles of the plurality of types of soles are formed to have different shapes such that an angle between a straight line and the ground is a forwardly descending angle that differs between the soles.

Abstract: A sole reference posture is determined such that a straight reference line connects a toe-tip position and a rearmost end position of a sole top surface, a path length measured along the sole top surface from the origin of the rearmost end position to the toe-tip position is L, an intersection point of a sole bottom surface and a line crossing a position of 0.45×L and orthogonal to the reference line is position C, and the sole is in contact with the ground at position C. In the reference posture, the sole bottom surface is separated from the ground at a heel portion and a toe portion, and an inequality ??5 is satisfied, wherein ? is an angle between a straight line connecting a heel central position of 0.15×L with a metatarsophalangeal joints position of 0.68×L and the ground.

Abstract: The present disclosure ensures the rigidity of a sole structure without loss of the bendability of the sole structure. A sole structure includes a plate that is arranged between an outsole and a midsole and is made of a material having higher rigidity than the outsole and the midsole. The plate has a plurality of cuts and a plurality of movable portions (movable portions) defined by phantom lines running along extending directions of the cuts. The movable portions are configured to be movable independently of each other in a thickness direction of the sole structure.

Abstract: A shoe includes a sole and an upper attached to the sole, in which the upper includes an upper main body that covers the forefoot portion, a portion of the midfoot portion, and the heel portion of the wearer, and a tongue that covers a portion of the midfoot portion, the tongue is connected to the upper main body in a front end portion or in the front end portion and portions of side portions, and the front end portion of the tongue is located such that the path length from a rear end portion of the shoe is a range of 35% or more and 50% or less based on a center line passing from the rear end portion to a front end portion of the shoe.

Abstract: Path length L is a distance from the origin to the tip toe position along the sole top surface, intersection C is a point between the sole bottom surface and a line perpendicular to the reference line S through the position of 0.45L, and intersection D is a point between the sole bottom surface and a line perpendicular to the reference line S through the position of 0.60L. In a sole stable posture in which the sole is in contact with the ground at points C and D, the sole bottom surface is separated from the ground at the heel and tip toe portions. Inequality, ??5 degrees is satisfied in the sole stable posture, wherein ? is an angle between the ground and a line connecting the heel central position of 0.15L and the metatarsophalangeal joint position of 0.68L.

Abstract: A sole structure for a shoe includes an upper wall portion disposed on the upper side, a lower wall portion disposed below and away from the upper wall portion, and a sidewall portion that is disposed between the upper wall portion and the lower wall portion and that is elastically deformable in the vertical direction. The upper and lower wall portions and the sidewall portion are formed of resin-made wall-shaped members. A three-dimensional elastic fiber structure formed of resin fibers is provided in the interior region between the upper wall portion and the lower wall portion. The interior region includes a hollow portion that is in contact with the three-dimensional elastic fiber structure via a partition wall formed of a resin-made wall-shaped member.

Abstract: A sole of a sole structure includes an upper wall portion disposed on an upper side, a lower wall portion disposed on a lower side and spaced away from the upper wall portion, and a pair of sidewall portions that extend substantially in a vertical direction between the upper wall portion and the lower wall portion, that have a vertical zigzag shape, that are coupled to the upper wall portion and the lower wall portion, and that extend in a longitudinal direction along the outer peripheries of the upper wall portion and the lower wall portion. The upper wall portion and the lower wall portion and a pair of sidewall portions are resin-made wall members with a predetermined thickness and form an interior space. Each of the sidewall portions has concave parts recessed inwardly and convex parts protruding outwardly and it is compressible in the vertical direction.

Abstract: A sole for a shoe includes a sole body extending longitudinally from a heel portion to a toe portion and a curved plate provided at the sole body and extending longitudinally along the sole body. A compressive rigidity of the sole body is lowest at a metatarsophalangeal joint position. The sole body includes a sole forefoot top part disposed above the curved plate at the forefoot portion and a sole forefoot bottom part disposed below the curved plate at the forefoot portion. The compressive rigidity of the sole body is relatively low at the sole forefoot bottom part.

Abstract: A sole reference posture is determined such that a straight reference line connects a toe-tip position and a rearmost end position of a sole top surface, a path length measured along the sole top surface from the origin of the rearmost end position to the toe-tip position is L, an intersection point of a sole bottom surface and a line crossing a position of 0.45×L and orthogonal to the reference line is position C, and the sole is in contact with the ground at position C. In the reference posture, the sole bottom surface is separated from the ground at a heel portion and a toe portion, and an inequality ??5 is satisfied, wherein ? is an angle between a straight line connecting a heel central position of 0.15×L with a metatarsophalangeal joints position of 0.68×L and the ground.

Abstract: The present invention relates to a shoe including an upper, the upper including an instep cover that covers the instep of a foot. The instep cover includes an instep cover body and a tongue. Two or more protrusions that are configured to extend in use from the instep cover body toward the foot are located at least in a region between the MP joint and the talus in a side portion of the instep cover body. The protrusions are made of embroidery. The protrusions have a height of 0.5 mm or more, a width of 2 mm or more, and a length of 2 mm or more. A distance between each pair of the adjacent protrusions is 2 mm or more in part of the region. The shoe of the present invention includes the upper that improves the heat dissipation properties without impairing the contact between the foot and the shoe.

Abstract: A shock-absorbing structure for a sole includes a wavy sheet laminated body in which a plurality of wavy sheets of a wave shape are laminated in the up-down direction to compose three or more layers, one-end sidewall portion provided at one end side in the wave direction of the wave shape of the wavy sheet laminated body and restraining the plurality of wavy sheets, the other-end sidewall portion provided at the other end side in the wave direction of the wave shape of the wavy sheet laminated body and restraining the plurality of wavy sheets, and a connecting portion in which at least a portion of a contact region of the plurality of wavy sheets is connected to one another.

Abstract: In one or more embodiments, the present invention relates to a shoe that includes a sole and an upper attached to the sole, in which the upper includes an upper main body that covers the forefoot portion, a portion of the midfoot portion, and the heel portion of the wearer, and a tongue that covers a portion of the midfoot portion, the tongue is connected to the upper main body in a front end portion or in the front end portion and portions of side portions, and the front end portion of the tongue is located such that the path length from a rear end portion of the shoe is a range of 35% or more and 50% or less based on a center line passing from the rear end portion to a front end portion of the shoe. This provides a shoe that has good fittability to the foot and good contact with the foot, and that is easy to put on.

Abstract: A sole structure for a shoe includes an upper wall portion disposed on the upper side, a lower wall portion disposed below and away from the upper wall portion, and a sidewall portion that is disposed between the upper wall portion and the lower wall portion and that is elastically deformable in the vertical direction. The upper and lower wall portions and the sidewall portion are formed of resin-made wall-shaped members. A three-dimensional elastic fiber structure formed of resin fibers is provided in the interior region between the upper wall portion and the lower wall portion. The interior region includes a hollow portion that is in contact with the three-dimensional elastic fiber structure via a partition wall formed of a resin-made wall-shaped member.

Abstract: The present invention relates to a shoe including an upper, the upper including an instep cover that covers the instep of a foot. The instep cover includes an instep cover body and a tongue. Two or more protrusions that are configured to extend in use from the instep cover body toward the foot are located at least in a region between the MP joint and the talus in a side portion of the instep cover body. The protrusions are made of embroidery. The protrusions have a height of 0.5 mm or more, a width of 2 mm or more, and a length of 2 mm or more. A distance between each pair of the adjacent protrusions is 2 mm or more in part of the region. The shoe of the present invention includes the upper that improves the heat dissipation properties without impairing the contact between the foot and the shoe.

Abstract: A shoe upper body of a shoe has a stretchable portion made of a stretchable material. The stretchable portion forms a region of the shoe upper body including a portion corresponding to the center of each of the medial malleolus and the lateral malleolus of a foot of a wearer of the shoe and including a position of an ankle opening. The stretchable portion is configured so as to be deformed from a non-stretched state to a stretched state and elastically recover from the stretched state to the non-stretched state.

Abstract: A method for manufacturing a sole of an article of footwear uses an additive manufacturing through a 3D printer. The sole body 20 has an inclined surface or a curved surface BL0 to be a supported surface by a support at a toe spring portion Tu/a heel-up portion Hu/a side-up portion Su. The method includes a forming process in which a plurality of pillar-shaped supports 20sp that extend from the inclined/curved surface BL0 toward the bottom surface of the sole at the time of forming the sole through the 3D printer, and a cutting process to cut at least a portion of the pillar-shaped supports 20sp.

Abstract: A sole structure includes a sole body. The sole body is a resin-made box-shaped member with a predetermined thickness and an interior space that is defined by an upper wall portion disposed on an upper side, a lower wall portion disposed on a lower side and spaced apart from the upper wall portion, and a pair of sidewall portions disposed between and interconnecting the upper wall portion and the lower wall portion in a heel region or a forefoot region that respectively corresponds to a heel portion or a forefoot portion of a foot of a shoe wearer. The sidewall portions are elastically deformable in a vertical direction and have a plurality of solid or hollow ribs that extend in a substantially vertical direction between the upper wall portion and the lower wall portion.

Abstract: Provided are a shoe upper and a shoe that have good fittability to the instep side of a foot and are capable of inhibiting the depression of the heal at the time of coming into contact with the ground. The present invention relates to, in one or more embodiments, a shoe upper, and the upper includes an instep cover for covering an instep side of the foot, the instep cover has a structure in which a tongue portion and an instep cover main body are formed as a single body, and a center portion of the instep cover in a width direction is substantially unstretchable in a length direction of the foot. The present invention relates to a shoe in which the shoe upper is integrated with a sole.

Abstract: Provided are a shoe upper that is capable of increasing the joining strength of joined portions of different members, protecting end portions, and improving contact with a foot and the appearance of the shoe, a method for producing the same, and a shoe. In a shoe upper of the present invention, different members are joined together through embroidery covering an end portion of at least one of the members, and at least one member forms a three-dimensional shape.