JPS5238688A - Punch - Google Patents
PunchInfo
- Publication number
- JPS5238688A JPS5238688A JP11424775A JP11424775A JPS5238688A JP S5238688 A JPS5238688 A JP S5238688A JP 11424775 A JP11424775 A JP 11424775A JP 11424775 A JP11424775 A JP 11424775A JP S5238688 A JPS5238688 A JP S5238688A
- Authority
- JP
- Japan
- Prior art keywords
- hole
- punching
- desired shape
- punch
- stroke
- 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
- Perforating, Stamping-Out Or Severing By Means Other Than Cutting (AREA)
- Punching Or Piercing (AREA)
Abstract
PURPOSE: To form a hole of a good shape free from punching fin extremely simply and easily by punching a hole smaller than a desired shape in the forwarding stroke and boring the hole into the desired shape in the returning stroke.
COPYRIGHT: (C)1977,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP50114247A JPS5825528B2 (en) | 1975-09-23 | 1975-09-23 | Senkouyo punch |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP50114247A JPS5825528B2 (en) | 1975-09-23 | 1975-09-23 | Senkouyo punch |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS5238688A true JPS5238688A (en) | 1977-03-25 |
JPS5825528B2 JPS5825528B2 (en) | 1983-05-27 |
Family
ID=14632966
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP50114247A Expired JPS5825528B2 (en) | 1975-09-23 | 1975-09-23 | Senkouyo punch |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5825528B2 (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS59115199A (en) * | 1982-12-22 | 1984-07-03 | 松下電工株式会社 | Punch for punching printed board of glass composite material |
Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS4981745A (en) * | 1972-12-13 | 1974-08-07 | ||
JPS5053994A (en) * | 1973-05-11 | 1975-05-13 |
-
1975
- 1975-09-23 JP JP50114247A patent/JPS5825528B2/en not_active Expired
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS4981745A (en) * | 1972-12-13 | 1974-08-07 | ||
JPS5053994A (en) * | 1973-05-11 | 1975-05-13 |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS59115199A (en) * | 1982-12-22 | 1984-07-03 | 松下電工株式会社 | Punch for punching printed board of glass composite material |
Also Published As
Publication number | Publication date |
---|---|
JPS5825528B2 (en) | 1983-05-27 |
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