Title:
DEVICE AND METHOD FOR MAKING HOLE IN THIN PLATE METAL
Document Type and Number:
WIPO Patent Application WO/2010/084527
Kind Code:
A1
Abstract:
A device (1) for making a hole in thin plate metal has an upper die holder (2) vertically moved by a hydraulic ram, a pressing plate (3) secured to the upper die holder (2), a pressing pad (5) suspended from the upper die holder (2) via an elastic member (4), a punch holder (7) secured to the pressing pad (5) by bolts (6) and constructed as a punch unit, a lower die (9) on which thin plate metal (8) in which a hole is to be made is placed, and a die (11) embedded in the lower die (9) and provided with a through-hole (10) having an oval shape corresponding to the shape of the through-hole to be made in the thin plate metal (8).
Inventors:
OISHI, Masatoshi (12-12, Miyajimaguchi 1-chome, Hatsukaichi-sh, Hiroshima 11, 73904, JP)
大石政利 (〒11 広島県廿日市市宮島口一丁目１２番１２号株式会社ワンズ内 Hiroshima, 73904, JP)
大石政利 (〒11 広島県廿日市市宮島口一丁目１２番１２号株式会社ワンズ内 Hiroshima, 73904, JP)
Application Number:
JP2009/000244
Publication Date:
July 29, 2010
Filing Date:
January 22, 2009
Export Citation:
Assignee:
ONES CO., LTD. (12-12, Miyajimaguchi 1-chome Hatsukaichi-sh, Hiroshima 11, 73904, JP)
株式会社ワンズ (〒11 広島県廿日市市宮島口一丁目１２番１２号 Hiroshima, 73904, JP)
OILES CORPORATION (6-34, Kounan 1-chome Minato-k, Tokyo 75, 〒1080075, JP)
オイレス工業株式会社 (〒75 東京都港区港南一丁目６番３４号 Tokyo, 〒1080075, JP)
株式会社ワンズ (〒11 広島県廿日市市宮島口一丁目１２番１２号 Hiroshima, 73904, JP)
OILES CORPORATION (6-34, Kounan 1-chome Minato-k, Tokyo 75, 〒1080075, JP)
オイレス工業株式会社 (〒75 東京都港区港南一丁目６番３４号 Tokyo, 〒1080075, JP)
International Classes:
B21D28/34; B21D28/24
Attorney, Agent or Firm:
TAKADA, Takeshi (3rd Floor, Zenkaren Building12-4, Minamiaoyama 5-chom, Minato-ku Tokyo 62, 10700, JP)
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