| 摘要 |
PROBLEM TO BE SOLVED: To provide a paper-made storage container capable of easily and surely locking a pair of lid pieces which open/close in a double-doors-like manner and preventing the locking function from dropping after repetition of locking and unlocking. SOLUTION: An insert piece 10 protruding from a protruding end 8a of a second lid piece 8 is inserted into a slit 11 opened on a first lid piece 7, a notch 10c of the insert piece 10 engages with respective edges of the slit 11 and in addition a pair of protruding pieces 12 come into contact with the rear face of the second lid piece 8. Thus, the first lid piece 7 and the second lid piece 8 are reliably locked. In addition, since a protruding end of the protruding piece 12 is a free end, its repulsion is large, so that the locking function can be prevented from dropping after the repetition of locking and unlocking. COPYRIGHT: (C)2005,JPO&NCIPI
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