| 摘要 |
PROBLEM TO BE SOLVED: To provide an exhibition device capable of reducing nitrogen gas to be filled since the leakage of nitrogen gas fed by a nitrogen gas feed device 20 is very small, and allowing an exhibition article to be easily taken from the periphery on a base 2 into/out of a case body 3. SOLUTION: The bottom of the case body 3 is open and the other parts of the case body are sealed. A hydraulic cylinder for lifting the case body 3 from/to the top board of the base is mounted on the base and a sealing device is mounted between the periphery of the bottom of the case body 3 and the top board. Nitrogen gas is fed into the case body 3 from the nitrogen gas feed device disposed inside the base 2 while the case body 3 is sealed air-tight easily and securely by the sealing device between the case body 3 and the top board of the base 2. COPYRIGHT: (C)2004,JPO
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