Title:
車両用メンバー部品及びそのプレス成形方法並びにプレス型
Document Type and Number:
Japanese Patent JP6757939
Kind Code:
B2
Abstract:
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.
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Inventors:
Hisaka Kato
Shibuya Torao
Kazumi Itakura
Hirotaka Fukui
Yoshifumi Naka
Shibuya Torao
Kazumi Itakura
Hirotaka Fukui
Yoshifumi Naka
Application Number:
JP2019562733A
Publication Date:
September 23, 2020
Filing Date:
August 07, 2018
Export Citation:
Assignee:
Toyota Auto Body Co., Ltd.
Midori Giken Co., Ltd.
Midori Giken Co., Ltd.
International Classes:
B62D25/00; B21D22/26; B21D24/00; B21D37/02; B21D53/88; B62D25/20
Domestic Patent References:
| JP2010089158A | ||||
| JP2012254483A | ||||
| JP2009196488A |
Attorney, Agent or Firm:
Cosmos International Patent and Trademark Office