| 摘要 |
<P>PROBLEM TO BE SOLVED: To easily determine whether a gas impermeable container composing a gas absorption device arranged inside of the sealed container is opened. <P>SOLUTION: An opener opens a hole in the gas impermeable container 3 by a needle part 4 as external force is added on a head 5 in the direction toward the gas impermeable container 3 in which a gas absorption material 2 is sealed. Further, a protecting member 8 prevents damage to the sealed container 7 by a tip of the needle part 4. The gas absorption device is configured such that when both of the head 5 and the protecting member 8 are while contacting respectively with walls of the sealed container 7 and a vibration is added to the head 5 via the wall of the sealed container 7 in the direction in which an interval of the needle part 4 and the protecting member 8 changes, the vibration added by the head 5 transmits directly to the protecting member 8 from the needle part 4 and the vibration transmitted from the protecting member 8 transmits to the wall of the sealed container 7 contacting the protecting member 8 if the needle part 4 opens the hole normally in substantially-flat two surfaces, of the gas impermeable container 3, opposing each other. Thereby, it can be determined whether the gas impermeable container 3 is opened based on the strength of the transmitted vibration. <P>COPYRIGHT: (C)2013,JPO&INPIT |
