| 摘要 |
Each wall component (23) inserts with its edge parts (25) into two opposing side wall tracks. On one side of each wall component is a lower edge part (25) convolution (27), and on its other side is an upper such structure (26). When the wall component is pushed downward into the tracks, it is deformed by contact with the track sides against which the edge parts of the wall are tensioned by spring effect. Each track extends along a small part of the height of the side walls, and is pref. located at the middle part of the walls. The track width diminishes in the direction towards the bottom of the box. The wall component edge parts (25) have one or more further convolutions (28) located above the upper convolution (26), and by working in conjunction with the track upper part these act as stops when the wall component is being inserted in the track. |
