JPS5053994A - - Google Patents
Info
- Publication number
- JPS5053994A JPS5053994A JP5139274A JP5139274A JPS5053994A JP S5053994 A JPS5053994 A JP S5053994A JP 5139274 A JP5139274 A JP 5139274A JP 5139274 A JP5139274 A JP 5139274A JP S5053994 A JPS5053994 A JP S5053994A
- Authority
- JP
- Japan
- 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
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D28/00—Shaping by press-cutting; Perforating
- B21D28/24—Perforating, i.e. punching holes
- B21D28/34—Perforating tools; Die holders
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D28/00—Shaping by press-cutting; Perforating
- B21D28/24—Perforating, i.e. punching holes
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D37/00—Tools as parts of machines covered by this subclass
- B21D37/08—Dies with different parts for several steps in a process
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Punching Or Piercing (AREA)
- Mounting, Exchange, And Manufacturing Of Dies (AREA)
- Milling, Broaching, Filing, Reaming, And Others (AREA)
- Perforating, Stamping-Out Or Severing By Means Other Than Cutting (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR7317246A FR2228570A1 (en) | 1973-05-11 | 1973-05-11 | Method of forming square holes in panels - involves passing expansible punch through previously drilled hole |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS5053994A true JPS5053994A (en) | 1975-05-13 |
| JPS5638287B2 JPS5638287B2 (en) | 1981-09-05 |
Family
ID=9119232
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP5139274A Expired JPS5638287B2 (en) | 1973-05-11 | 1974-05-10 |
Country Status (2)
| Country | Link |
|---|---|
| JP (1) | JPS5638287B2 (en) |
| FR (1) | FR2228570A1 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5238688A (en) * | 1975-09-23 | 1977-03-25 | Fujisash Co | Punch |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108856887B (en) * | 2018-05-24 | 2020-01-24 | 嘉善强锐五金制品厂（普通合伙） | Square hole cutting device |
-
1973
- 1973-05-11 FR FR7317246A patent/FR2228570A1/en active Granted
-
1974
- 1974-05-10 JP JP5139274A patent/JPS5638287B2/ja not_active Expired
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5238688A (en) * | 1975-09-23 | 1977-03-25 | Fujisash Co | Punch |
| JPS5825528B2 (en) * | 1975-09-23 | 1983-05-27 | 不二サッシ株式会社 | Senkouyo punch |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS5638287B2 (en) | 1981-09-05 |
| FR2228570B3 (en) | 1976-04-30 |
| FR2228570A1 (en) | 1974-12-06 |