| 摘要 |
PROBLEM TO BE SOLVED: To keep a shape sturdy and to obtain stable cushioning. SOLUTION: The structure of this cushioning material is as below. Protruding pieces 1a, 2a are provided on both end parts of the front end edges of a pair of frame panels 1, 2 facing each other with a necessary interval. The area between the back end edges of frame panels 1, 2 is covered with back panels 10, 11. The tip end edges of the protruding pieces 1a, 2a facing each other are joined together through a joining panel 3. The area between the end edges caught between the protruding pieces 1a, 2a of the frame panels 1, 2 is joined through a stage member 4, and this stage member 4 is connected with a stage panel 5, a folding panel 6, an inside-folding panel 7 and a stage panel 8 one by one. Both stage panels 5, 8 are raised, and the folding panel 6 and the inside- folding panel 7 are folded backward to superpose. The joining part of the folding panel 6 and the inside-folding panel 7 touches the back panel 10. |
