| 摘要 |
PROBLEM TO BE SOLVED: To provide a midsole with small spherical bodies inserted therein, capable of transmitting a feel of walking on an earth road or on sand even when walking on a paved road because the small spherical bodies are pressed with the weight of the transfer of the center of gravity from the heel to the toe and part of the small spherical bodies are moved to a place where the weight is not applied when walking with shoes on. SOLUTION: A bag is formed of a synthetic resin fiber with excellent elasticity in a shape matching the shape of the sole of a shoe, and hard small spherical bodies whose diameter is 1-5 mm are inserted into the bag to 40-70% of the capacity of the bag. The bag is sealed so that the small spherical bodies do not spill out of the bag. The midsole is characterized by the sealed bag bonded to the inner surface of an outsole. COPYRIGHT: (C)2011,JPO&INPIT
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