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Title:
METHOD FOR MANUFACTURING WASHERS AND WASHER
Document Type and Number:
WIPO Patent Application WO/2016/203852
Kind Code:
A1
Abstract:
Provided is a method for manufacturing washers, which can manufacture the washers with an improved material yield. A method for manufacturing washers comprises: a preparation step for preparing long members (N1) each provided with an upper wave-shaped section (20) and a lower wave-shaped section (30), the upper and lower wave-shaped sections (20, 30) having crests (21, 31) which are formed on the upper surface and/or the lower surface of the long member (N1), and having troughs (22, 32) continuous with the crests (21, 31) in the left-right direction; and a deformation step for deforming the long member (N1) so that the upper surface and the lower surface will have a circular arc shape in a front view.

Inventors:
OCHIAI Hirokazu (65 Midorigaoka 3-chome, Toyota-shi Aichi, 02, 〒4718502, JP)
Application Number:
JP2016/063066
Publication Date:
December 22, 2016
Filing Date:
April 26, 2016
Export Citation:
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Assignee:
TAIHO KOGYO CO., LTD. (65 Midorigaoka 3-chome, Toyota-shi Aichi, 02, 〒4718502, JP)
International Classes:
B21D53/20; B21D11/20; F16B43/00
Attorney, Agent or Firm:
NAGATA Toyohiko et al. (Santo International Patent And Trademark Office, Wakasugi Grand Bldg. bekkan 802 1-11-15, Higashitenma, Kita-ku, Osaka-sh, Osaka 44, 〒5300044, JP)
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