JPS5670536A - Shutter blade for camera - Google Patents
Shutter blade for cameraInfo
- Publication number
- JPS5670536A JPS5670536A JP14751979A JP14751979A JPS5670536A JP S5670536 A JPS5670536 A JP S5670536A JP 14751979 A JP14751979 A JP 14751979A JP 14751979 A JP14751979 A JP 14751979A JP S5670536 A JPS5670536 A JP S5670536A
- Authority
- JP
- Japan
- Prior art keywords
- hoop material
- shutter blade
- blade
- parts
- shutter
- 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
- Diaphragms For Cameras (AREA)
Abstract
PURPOSE: To facilitate and secure the mass production of lightweight and strong shutter blades by forming a shutter blade linked to an aluminum allloy hoop material at only linkage parts and by separating it after required processing.
CONSTITUTION: Shutter blades 1g, separated by temporarily punched grooves 1c, 1d, etc., except linkage parts 1e and 1f provided by press work, etc., to the parts which are not to pass by the aperture, are made of hoop material 1 of aluminum alloy successively. From this hoop material 1 after strength-increasing hard Alumite coating processing and black Alumite processing, blade 1g is separated at linkage parts 1e and 1f, so that the lightweight shutter blade of high strength, excellent characteristics and long life can be mass-produced.
COPYRIGHT: (C)1981,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP14751979A JPS5670536A (en) | 1979-11-14 | 1979-11-14 | Shutter blade for camera |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP14751979A JPS5670536A (en) | 1979-11-14 | 1979-11-14 | Shutter blade for camera |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS5670536A true JPS5670536A (en) | 1981-06-12 |
Family
ID=15432159
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP14751979A Pending JPS5670536A (en) | 1979-11-14 | 1979-11-14 | Shutter blade for camera |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5670536A (en) |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS6082223A (en) * | 1983-10-04 | 1985-05-10 | Iwata Denko Kk | Production of reel spring for cassette |
JPH0312642A (en) * | 1989-06-09 | 1991-01-21 | Copal Co Ltd | Manufacture of shutter blade for camera |
US6447175B1 (en) | 1999-04-21 | 2002-09-10 | Nidec Copal Corporation | Light shielding blade and method of manufacturing the same |
JP2007292951A (en) * | 2006-04-24 | 2007-11-08 | Canon Electronics Inc | Light shielding blade and its manufacture method |
-
1979
- 1979-11-14 JP JP14751979A patent/JPS5670536A/en active Pending
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS6082223A (en) * | 1983-10-04 | 1985-05-10 | Iwata Denko Kk | Production of reel spring for cassette |
JPH0312642A (en) * | 1989-06-09 | 1991-01-21 | Copal Co Ltd | Manufacture of shutter blade for camera |
US6447175B1 (en) | 1999-04-21 | 2002-09-10 | Nidec Copal Corporation | Light shielding blade and method of manufacturing the same |
US6550987B2 (en) | 1999-04-21 | 2003-04-22 | Nidec Copal Corporation | Light shielding blade and method of manufacturing the same |
JP2007292951A (en) * | 2006-04-24 | 2007-11-08 | Canon Electronics Inc | Light shielding blade and its manufacture method |
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