| 摘要 |
PROBLEM TO BE SOLVED: To provide a coupling structure of packaging materials, capable of facilitating opening a package, even with a small power. SOLUTION: Among two packaging surfaces 13A and 13B, a first one 13A1 of them is provided with a first insertion piece 18 and a first slit 20. The second packaging surface 13B is provided with a folding surface 23, a second slit 24, and a second insertion piece 27. The second insertion piece 27 is composed of a body part 29, which has a base end side continued to the second-side packaging surface 13B, and an insertion part 31 continued to the distal end side of the body part 29 and inserted in the first slit 20. In at least one of the second packaging surface 13 and the body part 29, a pair of openings 36 into which fingers can be inserted so as to pinch the width-direction both sides of the body part 29 are formed. COPYRIGHT: (C)2011,JPO&INPIT
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