| 摘要 |
<p>A device for opening and closing a package comprising a bag with a top (17) having first (31) and second (32) edges whose inner surfaces are joined together with a first joining force. The device comprises a first member (5) having a first surface joined to the outer surface (45) of the first edge (31) with a second joining force, and a second member (18) having a second surface (56) joined to the outer surface (48) of the second edge (32) with a third joining force. A flap (6) extending from the first surface is inserted, in the closed position, into a corresponding region of the second member (8), and the second and third joining forces are greater than the first joining force.</p> |
