| 摘要 |
<p>PURPOSE:To enhance the structure and perform packaging work of eggs with hooks each on the front and rear sides by applying three-folded lid structure which spreads in both directions. CONSTITUTION:A two-folded structure is conventional, however, a three-folded structure is used. Reinforcing members, which are located along the center line when lids are folded, are of bents which are formed by bending both edges inside. The reinforcement members are provided on both sides because a pack may becomes unstable when the pack is held on one side to undo hooks. Both edges of the lids overlap each other by about 10mm when the pack is folded and the hooks are provided in the overlap area.</p> |
