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Patent Searching and Data


Title:
FIXING DEVICE, FIXING METHOD, AND STRUCTURE
Document Type and Number:
WIPO Patent Application WO/2019/146400
Kind Code:
A1
Abstract:
When a plurality of members (13) are placed, so as to be layered, between a die (11) and a punch (12) which are opposedly disposed, this fixing device for members presses and fixes the plurality of members by moving the die and the punch such that the die and the punch approach each other. The plurality of members include a first member (131) having a first fixation portion (131A), a second member (132) having a second fixation portion (132A) smaller than the first fixation portion, and a third member (133) having a third fixation portion (133A) larger than the second fixation portion. The die has a projected portion (11E) projected in a direction toward the punch. The punch has a retraction portion (12A) recessed along the shape of the second fixation portion. As a result of relative movement of the die and the punch in approaching each other, the first fixation portion and the third fixation portion are pressed to form a pushed portion (22) and to form a recess-projection fitting structure (EG) in the thickness direction, and the second fixation portion is fixed so as to be sandwiched between the first fixation portion and the third fixation portion.

Inventors:
HONGO Takenobu (126-4, Aza Oohira Yamakami, Furudono-machi, Ishikawa-gu, Fukushima 02, 〒9638302, JP)
Application Number:
JP2019/000298
Publication Date:
August 01, 2019
Filing Date:
January 09, 2019
Export Citation:
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Assignee:
HONGO Takenobu (126-4, Aza Oohira Yamakami, Furudono-machi, Ishikawa-gu, Fukushima 02, 〒9638302, JP)
International Classes:
B21D39/03; B21F15/10
Attorney, Agent or Firm:
SAHARA MASASHI et al. (SIGHT PATENT, 5th Floor Omiyamiki Bldg., 9-18, Sakuragicho 1-chome, Omiya-ku, Saitama-sh, Saitama 54, 〒3300854, JP)
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