JPS5525015A - Driving device of shutter blade - Google Patents

Driving device of shutter blade

Info

Publication number
JPS5525015A
JPS5525015A JP9667878A JP9667878A JPS5525015A JP S5525015 A JPS5525015 A JP S5525015A JP 9667878 A JP9667878 A JP 9667878A JP 9667878 A JP9667878 A JP 9667878A JP S5525015 A JPS5525015 A JP S5525015A
Authority
JP
Japan
Prior art keywords
driving lever
blade
shutter
aperture
shutter blade
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
Application number
JP9667878A
Other languages
Japanese (ja)
Other versions
JPS6150296B2 (en
Inventor
Etsuo Tanaka
Yoshiyuki Nakano
Akihiko Sato
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.)
Nikon Corp
Nippon Chemical Industrial Co Ltd
Original Assignee
Nippon Chemical Industrial Co Ltd
Nippon Kogaku KK
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 Nippon Chemical Industrial Co Ltd, Nippon Kogaku KK filed Critical Nippon Chemical Industrial Co Ltd
Priority to JP9667878A priority Critical patent/JPS5525015A/en
Publication of JPS5525015A publication Critical patent/JPS5525015A/en
Publication of JPS6150296B2 publication Critical patent/JPS6150296B2/ja
Granted legal-status Critical Current

Links

Landscapes

  • Shutters For Cameras (AREA)

Abstract

PURPOSE: To reduce the aperture crossing time of shutter blade without making shutter winding heavy by aligning the force of a spring driving lever first to the axial direction of the blade driving lever then gradually to the turning direction.
CONSTITUTION: A spring driving lever 19 is at a right angle to the longitudinal direction of the oblong hole 13a of a blade driving lever 13 in an early period and therefore the lever 13 is not so much rotated and the considerable amount out of the energy of a spring 21 is converted to kinetic energy. At the point where the end part of a shutter blade 16 closes to an aperture 22, it becomes that a pin 19a pushes the oblong hole 13a nearly at a right angle, then the blade driving lever 13 is moved at a high speed by the kinetic energy having been accumulated till that time. Since the aperture passage time of the shutter blade may be reduced without requiring any increase in the driving energy, the shutter winding does not become heavy.
COPYRIGHT: (C)1980,JPO&Japio
JP9667878A 1978-08-10 1978-08-10 Driving device of shutter blade Granted JPS5525015A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP9667878A JPS5525015A (en) 1978-08-10 1978-08-10 Driving device of shutter blade

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP9667878A JPS5525015A (en) 1978-08-10 1978-08-10 Driving device of shutter blade

Publications (2)

Publication Number Publication Date
JPS5525015A true JPS5525015A (en) 1980-02-22
JPS6150296B2 JPS6150296B2 (en) 1986-11-04

Family

ID=14171446

Family Applications (1)

Application Number Title Priority Date Filing Date
JP9667878A Granted JPS5525015A (en) 1978-08-10 1978-08-10 Driving device of shutter blade

Country Status (1)

Country Link
JP (1) JPS5525015A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS63174829A (en) * 1987-01-09 1988-07-19 Kobe Steel Ltd Manufacture of metallic short fiber
JPH01152325U (en) * 1988-04-01 1989-10-20

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5119388U (en) * 1974-07-31 1976-02-12

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5119388U (en) * 1974-07-31 1976-02-12

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS63174829A (en) * 1987-01-09 1988-07-19 Kobe Steel Ltd Manufacture of metallic short fiber
JPH01152325U (en) * 1988-04-01 1989-10-20

Also Published As

Publication number Publication date
JPS6150296B2 (en) 1986-11-04

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