| 摘要 |
PROBLEM TO BE SOLVED: To provide a composite vessel made by combining an approximately hemispherical vessel body 10 and an approximately inverted truncated pyramidal outer package 11, which can be easily coupled to or separated from each other. SOLUTION: A plurality of hooking protrusions 17 are formed spaced apart along the circumferencial direction at a position on the lower side of a flange 16 of the vessel body 10, and the end portion in the circumferencial direction of each hooking protrusion 17 is formed into a slanting portion 18. At the upper edge of the outer package 11 an inwardly folded engaging hook 35 is hooked to the hooking protrusions 17 of the vessel main body 10. COPYRIGHT: (C)2007,JPO&INPIT
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