| 摘要 |
PROBLEM TO BE SOLVED: To provide a hermetically sealed vessel having a bulb in the vessel body for taking the hand and a thing in and out from the internal space, preventing the bulb which is wound and held in the internal space when unused from being folded and making creases so as not to make a space and sustaining sufficient sealing property to prevent air leak. SOLUTION: This hermeticaly sealed vessel has thin parts 14 and 15 on the outer part and thick parts 12 and 13 on the inner part so as to have varied thickness. The flat baglike bulb 9 with opened inner and outer ends is formed through mutually superposing two soft sheets 10 and 11 having internal surface self-adhesiveness to each other and welding the sheets along both the ends in the cross direction. The bulb 9 is attached so as to communicate with the internal space 6 of the vessel body 1, and wound and held in the internal space 6 of the vessel body 1 when unused. COPYRIGHT: (C)2004,JPO
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