| 摘要 |
A bumper reinforcement includes end portions and an intermediate portion, wherein the bumper reinforcement is made of a light alloy extruded material including a hollow cross-section and is configured to be arranged at a vehicle, the bumper reinforcement is configured to be assembled on and supported by a supporting member at each of the end portions bent toward a vehicle body side, the hollow cross-section includes a closed cross-section at the intermediate portion and includes an open cross-section provided with an opening at each of the end portions, each of the end portions is formed in a manner that a thickness of the hollow cross-section thereof in a vehicle front-rear direction is gradually reduced toward an end, and each of the openings is configured to be at least partially closed with a connecting portion of the supporting member and is restricted from being expanded.
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