Patent attributes
A midsole structure for an athletic shoe includes an upper midsole (3) formed of a soft elastic material, a lower midsole (4) disposed under the upper midsole (3) and formed of a soft elastic material, and a wavy plate assembly (5) interposed between the upper midsole (3) and the lower midsole (4). The wavy plate assembly (5) includes a wavy board (50) and a pair of sidewall members (51) provided discretely from the wavy board (50) and disposed on opposite Bides of the wavy board (50). Each of the sidewall members (51) includes a wavy bottom portion (51b) overlapping the wavy board (50) and an upraised portion (51a) extending upwardly from the wavy bottom portion (51b) to face a side surface of the upper midsole (3). Provision of the wavy board (50) and the sidewall members (51) discretely from each other simplifies a layout of a mold for forming the wavy plate assembly (5), thereby reducing a manufacturing cost.
