| 摘要 |
PROBLEM TO BE SOLVED: To provide a vehicle door structure efficiently absorbing impact energy over a period from the beginning of collision through to finishing of the collision at the time of side surface collision. SOLUTION: A curved guard bar 14 having a center part curved outward in a vehicular width direction is arranged in the inside of a door 1 in a fore-and-aft direction, and a straight guard bar 15 linearly connects between both end portions of the curved guard bar 14. A main energy absorbing portion 100 for absorbing axial force Fc acting on the curved guard bar 14 is arranged between one end portion 14a of the curved guard bar 14 and the door 1, and a fixing portion 17 for regulating movement in the fore-and-aft direction and the vehicular width direction of the curved guard bar 14 is arranged between the other end portion 14b of the curved guard bar 14 and the door 1. A vehicle door obtains high door reaction force immediately after the side collision, and the axial force of the curved guard bar due to the collision is absorbed by the main energy absorbing portion to ease collision energy. The axial force acting on the curved guard bar is concentrated in the main energy absorbing portion by the fixing portion. COPYRIGHT: (C)2005,JPO&NCIPI
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