| 摘要 |
A midsole structure for a professional massai walking rolling footwear is provided to achieve a simple and easy manufacturing by configuring a polyurethane supporting projection which is not damaged by a hydrolytic effect, and to improve a stability of walking by allowing an outsole, bent so frequently as a user walks, to be restored quickly. A midsole comprises: an upper pad(110), having a high-elastic shank which is composed of many slits and a bead-shaped rib, a semi-oval shaped tunnel(112) which is made out of a polyurethane with a hardness degree of 50 to 70, and projected convexly toward the ground surface, one or more polyurethane supporting projections(114) which are arranged on an upper surface of the tunnel, and an air bag which is formed in one side or both sides of the tunnel; a lower pad(120), having one or many polyurethane supporting projections(124) corresponding to those of the upper pad, and covering a lower part of the tunnel of the upper pad; and an adhesive, adhering the upper and the lower pads to each other. |
