| 摘要 |
PROBLEM TO BE SOLVED: To receive radio waves with a simple structure.SOLUTION: A back door 20 for vehicles has: hollow door panels 21 and 22 which are insulator hollow exterior items; and a metal reinforcing member 24 provided at an outer periphery part inside the hollow door panels 21 and 22 in a substantial annular shape. The back door 20 includes a signal line connected to the reinforcing member 24. The reinforcing member 24 is insulated from a vehicle body, and receives a radio wave. |
