| 摘要 |
<p>PROBLEM TO BE SOLVED: To provide a tray which can be carried by one-hand and hardly falls when carrying drink or the like.SOLUTION: In an expandable and contractable tray, a plurality of stages of frame bodies with oblique claws, which can slide to the height direction in the periphery of the tray, is provided. A grip fitting part is provided in the outermost frame body and a grip is installed in the grip fitting part. When holding up the grip, each frame body slides to the upper direction and the height increases, thereby the fulcrum move upward than the centroid of a cup.</p> |
