| 摘要 |
<p>A valve mechanism (1) for a bag, for evacuating an internal space of the bag is disclosed, which can be used regardless of the diameter of the nozzle of a suction device, and does not damage any other, for example, thightly closed bag stacked on its outside or placed adjacent to it, while allowing bags stacked on or adjacent to one another to form a flat and stable shape of packing. A suction connector (2) attached to the outer side of a tightly closed bag having a hole formed therein, and having a vent formed in its center has a flat shape, and a valve base (3) attached on the inner side of the tightly closed bag has recessed shape in cross section. Such a valve mechanism can be used with any nozzle of a suction device regardless of its diameter.</p> |
