| 摘要 |
<p>Provided are a midsole having one or more throughholes which integrally penetrate lateral portions of the midsole, and a midsole manufacturing device therefor, to thereby make the footwear weigh light, increase a cushion of the shoes, and make a warm-keeping effect excellent. The midsole is formed having an expanding edge portion which is extended outwards from the throughholes. The midsole manufacturing device having a mold assembly includes a lower mold having protruding pins formed on the inner walls of the molding groove in the opened lower mold, in which the rear portion of each of the protruding pins has a certain ramp with respect to the front portion thereof, and an upper mold on the bottom portion of which a pressurized projecting portion is formed, and which moves up and down.</p> |
