| 摘要 |
PROBLEM TO BE SOLVED: To provide a vehicle door structure in which required proof strength of a belt line reinforcement is secured and weight reduction of the belt line reinforcement is achieved.SOLUTION: In a vehicle door structure, a belt line reinforcement 30 is provided along a door belt line L in a front side door body 12. The belt line reinforcement 30 is made of a light alloy material. The second moment of area of an intermediate part 34 is set so as to be larger than the second moments of area of end parts 32, 36 in the belt line reinforcement 30. |
