JPS5699027A - Drawing method for original profile for crown cap - Google Patents
Drawing method for original profile for crown capInfo
- Publication number
- JPS5699027A JPS5699027A JP57580A JP57580A JPS5699027A JP S5699027 A JPS5699027 A JP S5699027A JP 57580 A JP57580 A JP 57580A JP 57580 A JP57580 A JP 57580A JP S5699027 A JPS5699027 A JP S5699027A
- Authority
- JP
- Japan
- Prior art keywords
- tangent
- arc
- crown cap
- original profile
- arcs
- 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
- Closures For Containers (AREA)
- Punching Or Piercing (AREA)
Abstract
PURPOSE: To plan the saving of material and the simplification of the opening action, by drawing three circles of the same radius centering at each of vertexes of a small equilateral triangle, by drawing three common tangents to each couple of adjoining two arcs among three arcs laying outside in a row, and by constituting the original profile of the crown cap with arc-tangent-arc-tangent-arc-tangent in this order.
CONSTITUTION: Three circles 5 in the same radius are drawn centering at each of three vertexes 2, 3, 4, of a small equilateral triangle 1; the common tangents 7 are drawn to adjoining two arcs among three arcs 6 lying outside in a row; then the original profile of the crown cap is constituted with arc 6 - tangent 7 - arc 6- tangent 7 - arc 6 - tangent 7 in this order. The crown cap is blanked from a tin plate, etc., in thus constituted original profile; hereby, the consumption of material such as the tin plate, etc., is saved by about 3% as compared with the conventional original profile of the crown cap. Moreover, thus formed crown cap can be extremely easily opened.
COPYRIGHT: (C)1981,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP57580A JPS5699027A (en) | 1980-01-09 | 1980-01-09 | Drawing method for original profile for crown cap |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP57580A JPS5699027A (en) | 1980-01-09 | 1980-01-09 | Drawing method for original profile for crown cap |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS5699027A true JPS5699027A (en) | 1981-08-10 |
Family
ID=11477502
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP57580A Pending JPS5699027A (en) | 1980-01-09 | 1980-01-09 | Drawing method for original profile for crown cap |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5699027A (en) |
-
1980
- 1980-01-09 JP JP57580A patent/JPS5699027A/en active Pending
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