Title:
CAN LID
Document Type and Number:
WIPO Patent Application WO/2011/102066
Kind Code:
A1
Abstract:
Provided is a can lid in which the thickness of a metal material is reduced to enable a decrease in the amount of the metal material used, and which has an improved pressure resistance to thereby effectively prevent cracking in a chuck wall due to buckling caused by drop impact or the like.
The can lid, which is formed of an aluminum alloy, comprises a circular bead projecting downward from the rim of a center panel, and a chuck wall and a seaming panel being formed above the circular bead, and has an outer lid diameter of 56-63 mm and a thickness of 0.18-0.25 mm, wherein the height (H) from the bottom end of said circular bead to the seaming panel is 7.0-7.6 mm, the height (h) of the outer wall of the circular bead is equal to or less than 1.0 mm, and the angle (α) of said chuck wall to the axial line is 20-30o exclusive.
Inventors:
OSAFUNE Tatsuya (Ltd. Technology & Packaging Development Division 1-70, Yakou 1-chome, Tsurumi-ku, Yokohama-sh, Kanagawa 01, 〒2300001, JP)
長船達矢 (〒01 神奈川県横浜市鶴見区矢向１－１－７０ 東洋製罐株式会社開発本部内 Kanagawa, 〒2300001, JP)
長船達矢 (〒01 神奈川県横浜市鶴見区矢向１－１－７０ 東洋製罐株式会社開発本部内 Kanagawa, 〒2300001, JP)
Application Number:
JP2010/073801
Publication Date:
August 25, 2011
Filing Date:
December 28, 2010
Export Citation:
Assignee:
TOYO SEIKAN KAISHA, LTD. (3-1 Uchisaiwai-cho 1-Chome, Chiyoda-ku Tokyo, 22, 〒1008522, JP)
東洋製罐株式会社 (〒22 東京都千代田区内幸町１丁目３番１号 Tokyo, 〒1008522, JP)
OSAFUNE Tatsuya (Ltd. Technology & Packaging Development Division 1-70, Yakou 1-chome, Tsurumi-ku, Yokohama-sh, Kanagawa 01, 〒2300001, JP)
東洋製罐株式会社 (〒22 東京都千代田区内幸町１丁目３番１号 Tokyo, 〒1008522, JP)
OSAFUNE Tatsuya (Ltd. Technology & Packaging Development Division 1-70, Yakou 1-chome, Tsurumi-ku, Yokohama-sh, Kanagawa 01, 〒2300001, JP)
International Classes:
B65D8/04
Attorney, Agent or Firm:
SERA Kazunobu et al. (Acropolis 21 Building 6th floor, 4-10 Higashi Nihonbashi 3-chome, Chuo-k, Tokyo 04, 〒1030004, JP)
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Claims:
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