| 摘要 |
PROBLEM TO BE SOLVED: To provide an auxiliary device enabling the suitable and comfortale use of a temp. holding member such as a cold reserving article, or the like, to put the function of the temp. holding article to practical use. SOLUTION: In a cover 1 for a temp. holding article, peripheral wall opposed parts are bonded at a plurality of places shown as numeral 6 is the figure to form an airtight hollow body 5 made of an airtight and flexible sheet material to form a tubular body and a hollow part 4 is filled with a gas such as air, or the like.
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