JPS63141146U

JPS63141146U -

Info

Publication number: JPS63141146U
Application number: JP3414187U
Authority: JP
Priority date: 1987-03-09
Filing date: 1987-03-09
Publication date: 1988-09-16
Also published as: JPH0354020Y2

Description

[Brief explanation of the drawing]

第１図は本考案の一実施例に係る缶体容器の蓋
体の平面図、第２図イは同蓋体の中央断面図、第
２図ロは第２図イのＡ部拡大断面図、第３図は同
蓋体のスコアーブレイク時の状態を示す中央断面
図、第４図はスコアーブレイク時の開口力を測定
した結果を示すグラフで、第４図イは本考案に係
る蓋体のグラフ、第４図ロは従来の蓋体のグラフ
、第５図は本考案の第二実施例に係る缶体容器の
蓋体の平面図、第６図は同蓋体の中央断面図、第
７図イは安全ビードを備えていない従来例の平面
図、第７図ロは安全ビードを備えた従来例の要部
拡大図である。符号の説明、１…蓋体、２…鏡板、４…スコア
ー線、４ａ…補助スコアー線、５…除去自在部分
、６…リベツト、７…プルタブ、９…タブノーズ
、１０…安全ビード、１１…非ビード部、ｌ…作
用力線、ｍ…折曲げ線。 Fig. 1 is a plan view of the lid of a can according to an embodiment of the present invention, Fig. 2 (a) is a central sectional view of the lid, and Fig. 2 (b) is an enlarged sectional view of section A of Fig. 2 (a). , Fig. 3 is a central sectional view showing the state of the lid at the time of score break, and Fig. 4 is a graph showing the results of measuring the opening force at the time of score break. 4B is a graph of the conventional lid, FIG. 5 is a plan view of the lid of a can according to the second embodiment of the present invention, and FIG. 6 is a central sectional view of the lid. FIG. 7A is a plan view of a conventional example without a safety bead, and FIG. 7B is an enlarged view of a main part of a conventional example with a safety bead. Explanation of symbols, 1...Lid body, 2...End plate, 4...Score line, 4a...Auxiliary score line, 5...Removable part, 6...Rivet, 7...Pull tab, 9...Tab nose, 10...Safety bead, 11...Non Bead portion, l... line of action, m... bending line.

Claims

[Scope of utility model registration request]

An annular score line for opening the entire surface is provided along the periphery of the flat mirror plate, and the inside of the score line is a removable part.
A rivet is erected within the removable portion, and a pull tab is erectably attached to the rivet, and
In the lid of a can body, which is formed with an auxiliary score line that extends radially outward from the center of the rivet by extending halfway around the periphery of the rivet on the center side of the lid, the auxiliary score line extends radially outward from the center of the rivet. A safety bead that protrudes upward from the flat surface of the end plate is provided continuously in the circumferential direction along the periphery other than the contact position, and the safety bead passes through the rivet position and is approximately parallel to the line of action of the pull tab. A lid for a can, characterized in that a non-bead portion is a portion where a perpendicular bending line and a score line intersect.