| 摘要 |
PROBLEM TO BE SOLVED: To provide a packaging box capable of enhancing working efficiency by eliminating a cause for a work delay while preventing correct work from being interfered, in particular, by a non-skilled worker without any procedure accompanied by a psychological trouble when rapidly performing the work. SOLUTION: In the packaging box, a first outer bottom flap 10, a first inner bottom flap 11, a second outer bottom flap 12, and a second inner bottom flap 13 are successively and continuously provided on a periphery of a lower end of a barrel 1; the flaps 10, 11, 12 and 13 are folded inwardly at their base ends; and fore ends of the outer bottom flaps 10 and 12 are engaged with each other to form a bottom surface. A plurality of projecting pieces 14 and 14a are formed at a fore end of the first outer bottom flap 10 with a space therebetween, and projecting pieces 16 and 16a are provided on sites corresponding to insertion parts 15 and 15a of adjacent parts of the projecting pieces 14 and 14a of the first outer bottom flap 10 at a fore end of the second outer bottom flap 12. After folding the inner bottom flaps 11 and 13, the outer bottom flaps 10 and 12 are folded, and each set of a pair of flaps opposing each other is successively folded. The flap folding order is simplified, a psychological burden during the assembling is reduced and the working efficiency is enhanced. COPYRIGHT: (C)2009,JPO&INPIT
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