JPS5670536A - Shutter blade for camera - Google Patents

Shutter blade for camera

Info

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
Application number
JP14751979A
Other languages
Japanese (ja)
Inventor
Osamu Oba
Shunji Ueda
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Nidec Copal Corp
Original Assignee
Nidec Copal Corp
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Nidec Copal Corp filed Critical Nidec Copal Corp
Priority to JP14751979A priority Critical patent/JPS5670536A/en
Publication of JPS5670536A publication Critical patent/JPS5670536A/en
Pending legal-status Critical Current

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
JP14751979A 1979-11-14 1979-11-14 Shutter blade for camera Pending JPS5670536A (en)

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)

* Cited by examiner, † Cited by third party
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

Cited By (5)

* Cited by examiner, † Cited by third party
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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