| 摘要 |
A structure of a door beam arranged inside a main body of a door in a vehicle. The door beam is press-molded, a recessed groove part is formed in the door beam along its extending direction, and an end of the groove part protrudes outward from an end of the door beam in the extending direction. In the groove part, an end part may have a deeper groove in comparison with a groove in a central part along the extending direction, or a plurality of groove lines may be formed in a central part along the extending direction, and they may be gradually transformed into a single groove in an end part. Preferably, the groove part protrudes outward in the extending direction, from a joint part of the door beam, which is provided for joining said end of the door beam to the main body of the door.
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