| 摘要 |
<p>The device (1) has a ceiling portion (3) provided in a flat type, and a floor part (4) provided as a plane, where the device comprises paper or hard cardboard. A side wall (5) connects the ceiling portion and the floor part to form a casing. The side wall comprises a bellow (6) and a high resilience unit (7) e.g. rubber band, spring or gripper, for adjusting distance between the ceiling portions and the floor part according to thickness of an object (2) to-be-protected, where the bellow and the high resilience unit are firmly gripped with each other.</p> |
