JPS649154A - Easy open can lid having good drop shock resistance - Google Patents
Easy open can lid having good drop shock resistanceInfo
- Publication number
- JPS649154A JPS649154A JP16407887A JP16407887A JPS649154A JP S649154 A JPS649154 A JP S649154A JP 16407887 A JP16407887 A JP 16407887A JP 16407887 A JP16407887 A JP 16407887A JP S649154 A JPS649154 A JP S649154A
- Authority
- JP
- Japan
- Prior art keywords
- score line
- lid
- curved
- shock resistance
- drop shock
- 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.)
- Pending
Links
Landscapes
- Containers Opened By Tearing Frangible Portions (AREA)
Abstract
PURPOSE:To enhance drop shock resistance and to reduce can opening force, by connecting both ends of the small semicircular score line around a rivet to both ends of the large semicircular score line in the vicinity of the outer periphery of a can lid by curved lines to form an endless tear opening part. CONSTITUTION:Since the breakage of a score line due to an impact is easy to generate when impact force causes the bending deformation along the score line, in a can lid 1, a tear opening part is constituted by forming the score line 3 by connecting both ends of a small semicircular part 3a and a large semicircular part 3b by a curved score line curved to the outside, that is, a curved part 3c and the generation of bending deformation along the score line due to shock generated when a can drops is suppressed. Therefore, drop shock resistance can be improved without damaging can openability and the use of steel to the can lid for an internal pressure can of beer or cola to which aluminum is largely adapted becomes possible and, further, a problem from the aspect of the adaptation of aluminum to the can lid of a large diameter heavy can also be eliminated.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP16407887A JPS649154A (en) | 1987-07-02 | 1987-07-02 | Easy open can lid having good drop shock resistance |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP16407887A JPS649154A (en) | 1987-07-02 | 1987-07-02 | Easy open can lid having good drop shock resistance |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS649154A true JPS649154A (en) | 1989-01-12 |
Family
ID=15786364
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP16407887A Pending JPS649154A (en) | 1987-07-02 | 1987-07-02 | Easy open can lid having good drop shock resistance |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS649154A (en) |
Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5812144B2 (en) * | 1975-12-27 | 1983-03-07 | 三井東圧化学株式会社 | Hatsuposhi - Tonoseizohouhouu |
-
1987
- 1987-07-02 JP JP16407887A patent/JPS649154A/en active Pending
Patent Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5812144B2 (en) * | 1975-12-27 | 1983-03-07 | 三井東圧化学株式会社 | Hatsuposhi - Tonoseizohouhouu |
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