| 摘要 |
A box (1) has an opening (2) whose end is closed by four tabs (3,4,5,6). The tab (5) has a pre-cut (8) and the tab (6) has a cutting (7). On folding back the two tabs (3,4) as far as the opening (2) the tab (6) goes on top. The tab (5) folds over an sticks on the tab (6). When one tab (5) is pulled from the side it divides, because of the pre- cut (8) and a part of the tab (6) appears. This (6) opens at the same time because of the cutting (7), as does the conical tab (4).The other part of the tab side (3) remains stuck forming the opening for supplying a portion. ADVANTAGE - Prevents loss by limiting quantity which can be extracted.
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