Patent ID: 6393732
Filing Date: 2002-05-28
Classification: A43B

Abstract:
The midsole assembly for an athletic shoe comprising:a midsole formed of soft elastic material: a corrugated sheet having corrugation, said corrugated sheet being interposed in at least the heel portion of said midsole; a plurality of transverse holes formed at the regions where said midsole contacts with said corrugated sheet, said transverse holes extending in the shoe width direction; a plurality of vent holes extending vertically and communicating with said transverse holes, said vent holes having open ends on the plantar contact face of said heel portion of said midsole; a vertically extending through hole formed at the midfoot portion of said midsole; a groove formed at the forefoot portion of said midsole, said groove extending longitudinally and communicating with said through hole; a plurality of vent holes being open at the plantar contact face of said forefoot portion of said midsole, said vent holes extending vertically and communicating with said groove; a concave portion formed at an opening portion of said through hole on the bottom side of said midfoot portion; and a cover portion formed at a portion of said corrugated sheet, said cover portion disposed oppositely to said opening portion of said through hole and covering a portion of said concave portion.