| 摘要 |
PROBLEM TO BE SOLVED: To provide a sole structure which can keep a shock on the heel widely distributed and absorbed and make easier walking without deteriorating strength of an innersole, the rigidity of the sole against distortion or the like around the heel and the durability of sole or the like. SOLUTION: In a structure of a sole 1 where a main sole 2, a midsole 3 and a shank member 4 are integrally laminated, a heel 4a, a shank part 4b and a branch part 4c are prepared in the shank member 4, and a standing wall rib 11 is formed at least in a part corresponding to the heel 4a. Then, a shock absorbing material 6 is embedded to the heel part of the midsole 3, the loss tangent of the dynamic viscoelasticity of the shock absorbing material 6 is made larger than the loss tangent of the dynamic viscoelasticity of the midsole 3. Then, slit grooves s prolonged in the longitudinal direction of the shoe are formed in both sides of the heel 4a of the shank member 4. COPYRIGHT: (C)2011,JPO&INPIT |
