| 摘要 |
<p>PURPOSE:To take out stored matters by only inclining a paper box and to facilitate manufacturing of the paper box by disengaging a front board and an upper cover board thereof to allow the cover board to be pushed up automatically by the action of a spring member, thereby easily exposing a shake-out port. CONSTITUTION:A side board 10, front board 20, other side board 30, rear board 40, and overlap width piece 50 are successively provided through a fold line to constitute a paper box with a shake-out port. And an upper cover board 21 and an insertion piece 22 are provided side by side on the upper end of the board 20. A spring member 23 defined by a U-shaped incision line (a) is disposed on the board 20. Further, the distal ends of the line (a) are extended to the vicinity of a central portion of the board 21 so as to be connected to each other by a folded line (b). And the forward end of the line (a) is formed into an arcuate shape and set at a locking part 24 of an insertion piece 42. By this arrangement, if the cover board 21 and the front board 20 are disengaged, the upper cover board 21 is pushed up automatically by the action of the spring member 23 so that the shake-out port is exposed.</p> |
