Patent ID: 6202325
Filing Date: 2001-03-20
Classification: A43B

Abstract:
A sole of footgear, including a heel portion and a ground plane, said sole being formed of a material with resiliency, and having a uniform thickness over an entire area thereof inclusive of said heel portion, comprising:an incision or a groove formed in said ground plane and arranged along a first straight line extending via one point present in an area in said ground plane, in a longitudinal direction of said footgear, said area corresponding to an arch of a foot of a wearer; anda plurality of incisions or a plurality of grooves formed in said ground plane and arranged along segments defining a plurality of similar quadrilaterals each having two corners thereof placed on said first straight line, in a manner being opposed to each other across said one point, and another two corners thereof placed on a second straight line present in an assumed plane including said ground plane and orthogonal to said first straight line via said one point, in a manner being opposed to each other across said one point.