Title:
BLANK FOR PARKING POLE AND METHOD FOR MANUFACTURING SAID BLANK
Document Type and Number:
WIPO Patent Application WO/2011/111340
Kind Code:
A1
Abstract:
Disclosed is a method for manufacturing a blank for a parking pole comprising: an extraction process, extrusion process or rolling process for forming a long rectangular material (11) of a fixed thickness (T1) and a fixed height (H1); a cutting process for cutting the long rectangular material (11) into a fixed width (W1) to form a short rectangular material (12); and a forging process for disposing the short rectangular material (12) within a die (110) provided with a cavity (111) of the fixed thickness (T1) and the fixed width (W1) and bending and clamping the short rectangular material (12) in the height direction by an upper punch (120) comprising an upper punch surface (121) depressed like a trough and a lower punch (130) comprising a lower punch surface (131) projecting like a mountain.
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Inventors:
OKUDA, Masaru (565-1, Aza Shichihanda Oaza Toshima, Shippo-cho, Ama-sh, Aichi 02, 〒4970002, JP)
Application Number:
JP2011/001222
Publication Date:
September 15, 2011
Filing Date:
March 02, 2011
Export Citation:
Assignee:
Ohashi Technica Incorporated (7-2 Toranomon 3-chome, Minato-ku Tokyo, 01, 〒1050001, JP)
株式会社オーハシテクニカ (〒01 東京都港区虎ノ門三丁目７番２号 Tokyo, 〒1050001, JP)
株式会社オーハシテクニカ (〒01 東京都港区虎ノ門三丁目７番２号 Tokyo, 〒1050001, JP)
International Classes:
B21K1/76; B21J5/02
Attorney, Agent or Firm:
KOBAYASHI, Hisao et al. (KISA PATENT & TRADEMARK FIRM, The 6th Central Bldg. 19-10, Toranomon 1-chome, Minato-k, Tokyo 01, 〒1050001, JP)
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Claims: