JPS55106436A - Focal plane shutter - Google Patents

Focal plane shutter

Info

Publication number
JPS55106436A
JPS55106436A JP1454879A JP1454879A JPS55106436A JP S55106436 A JPS55106436 A JP S55106436A JP 1454879 A JP1454879 A JP 1454879A JP 1454879 A JP1454879 A JP 1454879A JP S55106436 A JPS55106436 A JP S55106436A
Authority
JP
Japan
Prior art keywords
curtain
barrel
springs
winding
drive motor
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
JP1454879A
Other languages
Japanese (ja)
Inventor
Akihiko Hashimoto
Tamotsu Koiwai
Toyohiko Kimura
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.)
Olympus Corp
Original Assignee
Olympus Optical Co Ltd
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 Olympus Optical Co Ltd filed Critical Olympus Optical Co Ltd
Priority to JP1454879A priority Critical patent/JPS55106436A/en
Publication of JPS55106436A publication Critical patent/JPS55106436A/en
Pending legal-status Critical Current

Links

Landscapes

  • Shutters For Cameras (AREA)

Abstract

PURPOSE: To let shutter curtains travel by small driving force and at a constant speed by disposing springs to winding shafts.
CONSTITUTION: Springs 28, 29 are disposed within the front barrel 26 and rear barrel 27 which constitute the winding shafts for winding a front curtain 3 and a rear curtain 4, in order to reset the front curtain 3 and rear curtain 4 respectively to the start positions. As a result of this, when a release button is pushed, a drive motor 6 runs, causing the winding shaft 1 to revolve against the spring 28 by way of a clutch mechanism 7. The front curtain 3 then travels at a sufficient travel speed. Similarly, the rear curtain 4 travles as the revolution of a pulley 2 is made possible by a clutch mechanism 17. Thence, the drive motor 6 is run reverse and the front curtain 3 and rear curtain 4 are run by the springs 28, 29 and are thus wound to the front barrel 26 and rear barrel 27.
COPYRIGHT: (C)1980,JPO&Japio
JP1454879A 1979-02-10 1979-02-10 Focal plane shutter Pending JPS55106436A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP1454879A JPS55106436A (en) 1979-02-10 1979-02-10 Focal plane shutter

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP1454879A JPS55106436A (en) 1979-02-10 1979-02-10 Focal plane shutter

Publications (1)

Publication Number Publication Date
JPS55106436A true JPS55106436A (en) 1980-08-15

Family

ID=11864196

Family Applications (1)

Application Number Title Priority Date Filing Date
JP1454879A Pending JPS55106436A (en) 1979-02-10 1979-02-10 Focal plane shutter

Country Status (1)

Country Link
JP (1) JPS55106436A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5890628A (en) * 1981-11-25 1983-05-30 Kyocera Corp Motor-driven focal plane shutter device
JPH03174128A (en) * 1990-08-03 1991-07-29 Kyocera Corp Motor-driven focal-plane shutter device

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5223538U (en) * 1975-08-06 1977-02-18
JPS536432U (en) * 1976-06-30 1978-01-20
JPS5371831A (en) * 1976-12-08 1978-06-26 Copal Co Ltd Focal plane shutter which functions as screen

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5223538U (en) * 1975-08-06 1977-02-18
JPS536432U (en) * 1976-06-30 1978-01-20
JPS5371831A (en) * 1976-12-08 1978-06-26 Copal Co Ltd Focal plane shutter which functions as screen

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5890628A (en) * 1981-11-25 1983-05-30 Kyocera Corp Motor-driven focal plane shutter device
JPH0472211B2 (en) * 1981-11-25 1992-11-17 Kyocera Corp
JPH03174128A (en) * 1990-08-03 1991-07-29 Kyocera Corp Motor-driven focal-plane shutter device
JPH0516012B2 (en) * 1990-08-03 1993-03-03 Kyocera Corp

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