| 摘要 |
PROBLEM TO BE SOLVED: To deform a door beltline in a portion separated from an occupant lateral side to a vehicle front side in lateral collision of a vehicle. SOLUTION: A beltline reinforcement 16 disposed at a door beltline 14 of a front side door 12 is formed with a branch part 40 of a lower side projection 32 along the vehicle front/rear direction, and the branch part 40 is positioned in front of the vehicle to the lateral side of the occupant K seated on the front seat. A branch projection 42 is formed from the branch part 40 toward the vehicle front lower side so that the perpendicular cross section of the branch part 40 viewed from the vehicle front/rear direction is changed by increasing the number of the projections in the vehicle front side compared with the number of projections in the vehicle rear side. When a lateral collision load is applied to the reinforcement 16 from the car-width direction outside to the car-width direction inside in the lateral collision of the vehicle, this structure is formed to concentrate the load in the branch part 40 of the reinforcement 16. COPYRIGHT: (C)2008,JPO&INPIT
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