Mizuno Corporation

Kazunori Iuchi

Natsuki Sato

Takeshi Takeshita

Shogo Matsui

Yusuke Ide

Takao Oda

Tetsuo Yamamoto

Shin Hirai

Kentaro Yahata

Tatsuya Dazai

Yoshitaka Takahashi

Kohei Yamada

Terumasa Kita

Keiji Kurayama

Kiyotaka Kuroda

A midsole structure of a shoe includes an upper midsole, a lower midsole disposed below the upper midsole, and a wavy sheet interposed between the upper midsole and the lower midsole. The wavy sheet has a wavy shape at its medial and lateral side edge portions and a planar area at its central portion. The lower surface of the upper midsole and the upper surface of the lower midsole have wavy shapes that correspond to the wavy shape of the wavy sheet at their medial and lateral side edge portions and have a planar area that corresponds to the planar area of the wavy sheet at their central portions. The lower surface of the upper midsole and the upper surface of the lower midsole have a plurality of recesses that are disposed in the longitudinal direction at their central portions.

Midsole structure for a shoe

A stretchable member includes: a flat base made of a stretchable knitted fabric; and a limiting part extending in a stretching direction of the base, formed integrally with the base while having both ends in a length direction knitted in, and fixed to, the base, and configured to limit stretch of the base. The limiting part is longer than the distance between fixing points at which the limiting part is fixed to the base in an unstretched state, and is made of a knitted fabric which has a flat band shape and which is configured to become slack with respect to the base when the base is in the unstretched state.

Stretchable member for shoe and shoe including the stretchable member

A support is configured such that a bulge is allowed to deform toward a deformation space due to the deformation space when the deformation space is in an open state, and that the bulge is allowed to deform upward and a buffer member is compressively deformed when the deformation space is in a closed state.

Sole structure and shoe including same

An outsole includes a substantially flat reference surface formed on a lower side of the outsole, and studs projecting downward from the reference surface and each having a projection surface positioned below the reference surface. Midsole hollows are provided in a lower portion of a midsole. The midsole hollows are each defined between an upper portion of the outsole and an associated one of midsole recesses formed in a lower surface of a lower midsole at positions facing upper sides of the studs.

A support of a sole structure includes a base disposed in a middle region in a foot width direction and having an upper surface which follows a plantar surface of a wearer's foot, and upper and lower supports continuous with a side portion of the base on a medial side in the foot width direction. The upper support has an upper surface that is continuous with the side portion of the base such that the upper surface of the upper support, together with the upper surface of the base, follows the plantar surface. The lower support is continuous with the side portion of the base so as to be located under the upper support, and has a corrugated shape having peaks and valleys alternating with each other in a longitudinal direction along the side portion of the base.

Sole structure for shoes and shoe with the sole structure

A midsole structure for a shoe not only maintains stability at the time of impacting the ground and improves cushioning property but also eliminates discomfort to a foot sole and improves ride feeling during running. The midsole structure () comprises at least two midsoles provided at a heel region of the shoe and having a hardness difference. On opposite sides of the heel region, an upper midsole () of a greater hardness has a thickness greater than a thickness of a lower midsole () of a smaller hardness. In a central part of the heel region, the lower midsole () of a smaller hardness has a thickness greater than a thickness of the upper midsole () of a greater hardness. Boundary surfaces (B,A) between the upper midsole () and the lower midsole () do not appear on a top surface of the midsole structure () (that is, a foot sole contact surface (A) of the upper midsole ()).

A shoe () of the present invention includes a sole () and an upper (). The upper () is composed of a fabric having a knit structure, and contains fiber reinforcement portions (, and) in predetermined portions of the upper () integrally. The fiber reinforcement portions (, and) are formed of a float stitch with a plurality of float stitch yarns (). The shoe of the present invention imparts a proper fit to a wearer's foot by forming the upper composed of the fabric having the knit structure that stretches properly. Also, in the case where the direction of foot force is suddenly changed while the sole contacts the ground, the shoe can hold the foot in desired predetermined positions by the fiber reinforcement portions situated in predetermined positions of the upper integrally. Thus, the present invention provides a shoe having proper holding properties while maintaining fitting properties.

Shoes

A sole structure includes an outsole having a ground surface as a lower surface; a midsole stacked on a top of the outsole and made of an elastic material; and a supporter provided around a middle of the midsole in a thickness direction, and extending longitudinally to include a heel region corresponding to a heel of a foot. The supporter includes a base provided in a central region of the heel region in a foot width direction, and a corrugated side provided continuously with each side of the base in the foot width direction, and including a ridge with its apex located above the base, and a groove provided continuously with a rear of the ridge with its bottom located below the base at the rear of the heel region.

Disclosed is a sole structure for shoes, which includes a lower midsole. The lower midsole includes a medial-side midsole portion which extends in a medial side portion of a heel region supporting a heel of a wearer's foot, and a lateral-side midsole portion which extends in a lateral side portion of the heel region, and which faces, and is spaced apart from, the medial-side midsole portion in a foot width direction. The lateral-side midsole portion includes supports which are arranged adjacent to each other in a longitudinal direction with a gap interposed therebetween and which support the wearer's heel, and a coupling portion which is provided in the gap, and couples the adjacent supports to each other to reduce displacement or twist in the foot width direction occurring between the adjacent supports.

A sole structure for a sport shoe can increase accelerating force during activities and achieve quick movements. A sole assemblyfor an indoor shoe includes a sole bodyformed of a soft elastic member and a plate-like member or planar sheet memberthat is disposed at a position under the first to fourth distal phalanx DP-DPof the wearer's foot on a foot sole contact surfaceA of the sole body, and that has a higher hardness than that of the sole body. The plate-like memberextends arcuately substantially in the foot width direction along the toes of the wearer's foot and has a narrow partC of a short length in the foot length direction, or a spacing gap, at a region between the first toe and the second toe.

Growing community of inventors

Osaka, Japan

Kazunori Iuchi