| 摘要 |
<p>PROBLEM TO BE SOLVED: To provide a method of simply tying plastic lunch boxes without breakage with excellent workability both in manufacturing and using irrespective of the number or a shape of the boxes. SOLUTION: The tying method comprises steps of stacking several plastic lunch boxes 1, sticking adhesive tapes 2. on two symmetrical side faces and coupling their tips 4 and 5 via a string 3. Another method comprises steps of stacking the several plastic lunch boxes 1, sticking the adhesive tapes 2 on two symmetrical side faces and folding respectively their tips 4 and 5 with their adhesive surfaces inside.</p> |
