VEHICULAR MEMBER COMPONENT, PRESS-FORMING METHOD THEREFOR, AND PRESS DIE

WIPO Patent Application WO/2019/130641

A1

The purpose of the present invention is to achieve high tensile strength and partial thinning of a steel plate in press-processing so as to achieve both weight reduction and high strength in a vehicular member component. A vehicular member component (10) is formed in an approximate hat cross-sectional shape, provided with a center part (2) and side wall parts (1) standing erect on both sides of the center part, by press-processing a steel plate (W) having an approximately uniform thickness. The side wall parts are provided with: inner-plate displaced surfaces (31) formed by displacing inner plate surfaces, from first stepped sections (121) to distal end sections (11), toward the outside of the plate, the first stepped sections (121) being formed on inner-plate end edges of proximal end sections (12) that are bent from left/right ends of the center part; and outer-plate displaced surfaces (32) formed by displacing outer plate surfaces, from second stepped sections (111) to the proximal end sections (12), toward the inside of the plate, the second stepped sections (111) being formed on outer-plate end edges of the distal end sections, wherein thin wall parts (3) thinner than the center part are formed between the first stepped sections and the second stepped sections by the inner-plate displaced surfaces and the outer-plate displaced surfaces.

KATO HISAYOSHI (JP)
SHIBUYA TORAO (JP)
ITAKURA KAZUMI (JP)
FUKUI HIROTAKA (JP)
NAKA YOSHIFUMI (JP)

PCT/JP2018/029593

July 04, 2019

August 07, 2018

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TOYOTA AUTO BODY CO LTD (JP)
KK MIDORI GIKEN (JP)

B21D22/26; B21D24/00; B21D37/02; B21D53/88; B62D25/00

JP2010089158A	2010-04-22
JP2012254483A	2012-12-27
JP2009196488A	2009-09-03

COSMOS INTERNATIONAL PATENT & TRADEMARK OFFICE (JP)

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