| 摘要 |
PURPOSE:To obtain a practical strength easily and a provide a light weight chair with a simple structure by fastening an external wall of a blow molded core material on an internal wall in a recessed part provided on the external wall. CONSTITUTION:A seat plate 11 is fixed on a receiving metal 9 which is mounted on a protruded part 6 with a bolt 18 and a nut 82 as a clamp member 8 using a bolt 91 and a nut 92. In this case. the mounting of the receiving metal 9 is performed simultaneously with work of fastening an external wall 43 of a blow molded core material 41 on an internal wall 44. In other words. the receiving metal 9 is clamped in place with the bolt 81 and the nut 82 together when a recessed part 5 and the protruded part 6 of the core material 41 are tightened with the bolt 81 and the nut 82. In this manner, after the receiving metal 9 is mounted at four points of the blow molded core material 41, the seat plate 11 is placed on the receiving metal 9 and the protruded thread of the blow molded core materials 41 and then, the seat plate 11 is tightened with the bolt 91 and the nut 92 to be fixed on the blow molded core material 41. Cushion material and an armor material are added to the seat plate 11 and the blow molded core material 41. |
