JPS6423943A - Easily openable lid - Google Patents
Easily openable lidInfo
- Publication number
- JPS6423943A JPS6423943A JP62173346A JP17334687A JPS6423943A JP S6423943 A JPS6423943 A JP S6423943A JP 62173346 A JP62173346 A JP 62173346A JP 17334687 A JP17334687 A JP 17334687A JP S6423943 A JPS6423943 A JP S6423943A
- Authority
- JP
- Japan
- Prior art keywords
- line
- outer edge
- heat seal
- seal part
- cut
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Landscapes
- Packages (AREA)
- Containers Opened By Tearing Frangible Portions (AREA)
Abstract
PURPOSE:To easily open a lid, by forming a cut-in or thinned line from the tearing start point of the outer edge of the heat seal part of a container main body to the side edge of a tab so as to form an angle of 50-75 deg. with respect to the tangential line of the outer edge. CONSTITUTION:A lid 4 has a pickup tab 6 protruding to the outside and a cut-in line or weakened line 8 is formed to the area from the side edge present on the upstream side to the outer edge 5a of a heat seal part 5 in the clockwise direction of the tab 6. The angle theta formed by the cut-in line 8 and the tangential line 10 of the outer edge 5a at the tearing start point 9 being the intersecting point 9 with the outer edge 5a of the heat seal part 5 is set to 50-75 deg.. Further, a score part 11 is formed to the upper surface of the lid 4 along the inner edge 5b of the heat seal part 5 from the vicinity part 15 of the radius 13 passing the base part 12a of a side edge 12 to a position 16 slightly exceeding the extension line 8a of the cut-in line 8. When the angle theta is smaller than 50 deg., an initial tearing line is easy to advance along the outer edge 5a of the heat seal part 5 and opening becomes difficult. When the angle theta is larger than 75 deg., the force required in initial tearing becomes large.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP62173346A JPH0637210B2 (en) | 1987-07-10 | 1987-07-10 | Easy opening lid |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP62173346A JPH0637210B2 (en) | 1987-07-10 | 1987-07-10 | Easy opening lid |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS6423943A true JPS6423943A (en) | 1989-01-26 |
JPH0637210B2 JPH0637210B2 (en) | 1994-05-18 |
Family
ID=15958713
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP62173346A Expired - Fee Related JPH0637210B2 (en) | 1987-07-10 | 1987-07-10 | Easy opening lid |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPH0637210B2 (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2016033062A (en) * | 2015-11-30 | 2016-03-10 | 大日本印刷株式会社 | Lid and container using the same |
Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS4425029Y1 (en) * | 1966-02-01 | 1969-10-21 | ||
JPS54139675U (en) * | 1978-03-22 | 1979-09-28 |
-
1987
- 1987-07-10 JP JP62173346A patent/JPH0637210B2/en not_active Expired - Fee Related
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS4425029Y1 (en) * | 1966-02-01 | 1969-10-21 | ||
JPS54139675U (en) * | 1978-03-22 | 1979-09-28 |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2016033062A (en) * | 2015-11-30 | 2016-03-10 | 大日本印刷株式会社 | Lid and container using the same |
Also Published As
Publication number | Publication date |
---|---|
JPH0637210B2 (en) | 1994-05-18 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
LAPS | Cancellation because of no payment of annual fees |