Manufacturing method and manufacturing device of structural member

Number of patents in Portfolio can not be more than 2000

United States of America Patent

PATENT NO 11712730
APP PUB NO 20220250132A1
SERIAL NO

17623559

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ATTORNEY / AGENT: (SPONSORED)

Importance

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Abstract

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This manufacturing method of a structural member includes an intermediate step and a bending step. A height difference is provided on a bottom wall of a groove part between an intermediate position and both end positions sandwiching the intermediate position therebetween in a longitudinal sectional view in an extending direction of the groove part by the pressing in the intermediate step, and thereby at least one of a first curved part which has a concave curved shape in a plan view and a convex curved shape in the longitudinal sectional view and a second curved part which has a convex curved shape in the plan view and a concave curved shape in the longitudinal sectional view is formed on the bottom wall.

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Patent Owner(s)

  • 501 NIPPON STEEL CORPORATION

International Classification(s)

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Ito, Yasuhiro Tokyo, JP 189 1357
Tabata, Ryo Tokyo, JP 10 38

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