| 摘要 |
PROBLEM TO BE SOLVED: To improve outer appearance by making striped sinking caused by a welded part not attract attention by positioning the welded part of an outer skin and a reinforcing rib in a slender region where an outer surface of the outer skin makes a recessed arc surface. SOLUTION: An outer skin 2 has a side edge part 7 existing at a position higher than a main body part and a connecting part 8 to connect the main body part 6 and the side edge part 7 to each other. The connecting part 8 is constituted of a slender region 10 existing on the side of the main body part 6 and an outer surface of which makes a recessed arc surface 9 and a chamfered region 12 existing on the side of the side edge part 7 and an outer surface of which makes a protruded arc surface 11. A welded part 13 of the outer skin 2 and a reinforcing rib 4 is positioned in the inside of the slender region 10. In such constitution, striped sinking showing the welded part 13 appears in the slender region 10. As the slender region 10 is reflected like irregular reflection as the outer surface is the recessed arc surface 9, and striped sinking is camouflaged and does not attract attention. |
