Production method of opening easy lid and the opening easily can lid

摘要

PROBLEM TO BE SOLVED: To keep relative mobility between overlaid can lids in a radial direction.;SOLUTION: A can lid 125 comprises an annular flange curl 127 to be fixed to a can barrel, a counter sink 6 formed on an inner peripheral side of the flange curl 127 and inside of the flange curl 127, a center panel 40 provided on an inner peripheral side of the counter sink 6, and breaking lines 19, 31 formed on the center panel 40 for defining opening pieces 20, 26 to be broken by pressing force. It also comprises a skirt panel 7 which is formed on the inner peripheral side of the counter sink and also curved, and a swell 8 formed at an end of the skirt panel 7 and also curved, wherein a normal line G1 passing through a point of inflection E1 of the skirt panel 7 and the swell 8 is inclined in a direction toward a center axis line A1 and away from the center panel.;COPYRIGHT: (C)2001,JPO