| 摘要 |
<p>The present invention relates to a packaging box improving impact resistance to transport and package fragile goods from an impact. According to an aspect of the present invention to achieve the above object, the packaging box comprises: a bottom unit having a rectangular shape and a reinforcement structure of a consistent thickness over the entire area; a first side unit comprising a first floor attachment unit and a first extension unit; a third side unit comprising a third floor attachment unit and a third extension unit; a second side unit comprising a second floor attachment unit and a second extension unit; a fourth side unit comprising a fourth floor attachment unit and a fourth extension unit; a first corner joint unit; a second corner joint unit; a third corner joint unit; and a fourth corner joint unit. The first, second, third and fourth side units have a reinforcing core in an outer cover unit, respectively. In the reinforcing core, a plurality of sheets of paper are laminated. According to the constitution, the packaging box comprises a combination of separate components increasing the stiffness and simultaneously has a reinforcing structure, thereby providing the packaging box with improved impact resistance.</p> |
