| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a cushioning material that can be miniaturized and reused, is hardly damaged, and facilitates miniaturization. <P>SOLUTION: The cushioning material 1 has a bag 10 having a bellows part 11 and capable of expanding and contracting, a ventilation part 30 having a ventilation port 31, a check valve 40, a guide pin 50, and elastic bodies 61, 65. The ventilation port 31 is closed by the check valve 40, air in the bag 10 hardly flows out, and the cushioning material 1 exhibits the cushioning power in a use condition where the bag 10 is expanded. The air in the bag 10 flows out outside through the ventilation port 31, and the bellows part 11 is collapsed when the check valve 40 is released and the bag 10 is compressed. A lock plate 35 locks to the guide pin 50 when the guide pin 50 slides and the front end of the same protrudes outside of the ventilating part 30, thereby the cushioning material 1 is locked in not using condition where the cushioning material is compressed. The cushioning material 1 can be easily miniaturized. the miniaturized cushioning material 1 can be removed, and the cushioning material 1 is hardly damaged. <P>COPYRIGHT: (C)2012,JPO&INPIT |
