US 2019/0289961 A1Published application

Midsole Structure for a Shoe

AssigneeMizuno Corporation

InventorsKazunori IUCHI, Shin HIRAI, Takao ODA

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Abstract

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.

Claims9

Dependent claims

A midsole structure for a shoe comprising:

an upper midsole disposed on an upper side of a heel region that corresponds to a heel portion of a foot of a shoe wearer;
a lower midsole disposed below said upper midsole;
and
a wavy sheet interposed between said upper midsole and said lower midsole,
wherein said wavy sheet has a wavy shape at least either one of a sheet medial side portion or a sheet lateral side portion and a planar shape at a sheet central portion,
wherein a lower surface of said upper midsole and an upper surface of said lower midsole have a wavy shape that corresponds to said wavy shape of said wavy sheet at least either at a sole medial side portion or at a sole lateral side portion, said lower surface of said upper midsole and said upper surface of said lower midsole have a planar shape that corresponds to said planar shape of said wavy sheet at a sole central portion, and at least either said lower surface of said upper midsole or said upper surface of said lower midsole has a plurality of recesses disposed along a substantially longitudinal direction at said sole central portion.

3 more elements

Dependencies are inferred from the claim text.

Facts

Application: 16/286,892Filed 27 Feb 2019
Priority: JP 2018-05398522 Mar 2018
Published: 26 Sep 2019
Term ends: Not estimatedThe source records don’t support an estimate.

Classification8 codes

A43B 13/026
Characterised by the material: composites, e.g. carbon fibre or aramid fibre; the sole, one or more sole layers or sole part being made of a composite
A43B 13/186
Resiliency achieved by the structure of the sole: differential cushioning region, e.g. cushioning located under the ball of the foot
A43B 13/127
Characterised by the midsole or middle layer: the midsole being multilayer
A43B 13/185
Resiliency achieved by the structure of the sole: elasticated plates sandwiched between two interlocking components, e.g. thrustors