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Title:
DOUBLE SEAMING CAN END AND END CURLER-FORMING TOOL
Document Type and Number:
Japanese Patent JP3714160
Kind Code:
B2
Abstract:

PROBLEM TO BE SOLVED: To provide a can end, the curl tip part of which does not damage a can body or a flange at seaming and in which the wrinkle impression of the can body does not occur at seaming, and also provide an end curler-forming tool for forming the above can end.
SOLUTION: The can end 1 has, sequentially from its center toward its peripheral edge, a center panel 2, chuck wall radius 3, chuck wall 4, seaming panel radius 5, seaming wall 6, cover hook radius 7 and cover hook 8. A curl portion 11 bending to the center side by curling is formed on the cover hook 8, and has a first bending part 12 having a curvature radius R1 in the direction of the center and a second bending part 13 having the curvature radius R2 equal to or smaller than R1 in the direction of the peripheral edge.


Inventors:
Tatsuya Osafune
Application Number:
JP2000369377A
Publication Date:
November 09, 2005
Filing Date:
December 05, 2000
Export Citation:
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Assignee:
Toyo Seikan Co., Ltd.
International Classes:
B65D8/20; B21D19/12; B21D51/44; (IPC1-7): B21D51/44; B21D19/12; B65D8/20
Domestic Patent References:
JP1167050A
JP6071366A
JP3275443A
JP4033733A
JP2002102972A
Attorney, Agent or Firm:
Haruo Kawai