| 摘要 |
<P>PROBLEM TO BE SOLVED: To suppress an increase of a tab operation load which is generated when a score line has branches. <P>SOLUTION: When the rear end of a tab is lifted by a user, the tip of the tab presses an area located between the curved part 454 of a second score line 450 and the top 433A of a first score line 430. When the area is pressed by the tab, a panel 400 is broken by the curved part 454 of the second score line 450 (refer to (B)). Then, the breakage of the panel 400 progresses along the second score 450, and the panel 400 is in a broken state to a connection part between the first score 430 and the second score 450. Then, as shown in (C), breakage directed from the connection part to one end 431 of the first score line 430 occurs. Then, as shown in (D), breakage directed from the connection part to the other end 432 of the first score line 430 occurs. <P>COPYRIGHT: (C)2012,JPO&INPIT |
