| 摘要 |
PROBLEM TO BE SOLVED: To realize an air-conditioning duct for an automobile with high impact absorptivity. SOLUTION: This air-conditioning duct 1 for the automobile is made of thermoplastic resin integrally formed by blow molding, having one wall 2 and the other wall 3 relative with a space in a direction (of an arrow mark) to which impact is applied, and an inner rib 6 of plate shape for absorbing the impact, provided between one wall 2 and the other wall 3 along the longitudinal direction. One wall 2 is inclined with respect to the other wall 3, and one side wall 4 and the other side wall 5 connected to both side ends of one wall 2 and the other wall 3 are relative almost in parallel. The inner rib 6 of plate shape is formed by integrating the tip of one rib 7 with one reinforcing core material 9 of plate shape embedded projecting from one wall 2 toward the other wall 3, with the tip of the other rib 8 with the other reinforcing core material 10 embedded projecting from the other wall 3 toward one wall 2, through a weld part 11. |
