GB1452416A - Camera shutter mechanism - Google Patents

Camera shutter mechanism

Info

Publication number
GB1452416A
GB1452416A GB3721974A GB3721974A GB1452416A GB 1452416 A GB1452416 A GB 1452416A GB 3721974 A GB3721974 A GB 3721974A GB 3721974 A GB3721974 A GB 3721974A GB 1452416 A GB1452416 A GB 1452416A
Authority
GB
United Kingdom
Prior art keywords
lever
spring
blades
rotate
rebounding
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.)
Expired
Application number
GB3721974A
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.)
Seiko Koki KK
Original Assignee
Seiko Koki 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 Seiko Koki KK filed Critical Seiko Koki KK
Priority to GB3721974A priority Critical patent/GB1452416A/en
Publication of GB1452416A publication Critical patent/GB1452416A/en
Expired legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03B—APPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FOR PROJECTING OR VIEWING THEM; APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ACCESSORIES THEREFOR
    • G03B9/00—Exposure-making shutters; Diaphragms
    • G03B9/08—Shutters
    • G03B9/10—Blade or disc rotating or pivoting about axis normal to its plane
    • G03B9/18—More than two members

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Details Of Cameras Including Film Mechanisms (AREA)

Abstract

1452416 Camera shutters SEIKO KOKI KK 23 Aug 1974 37219/74 Heading G2A A shutter mechanism is (a) cocked by a lever 11 which engages pins 1b, 2b to rotate opening and closing levers 1, 2 into cocked positions (as shown) in which they are held by detents 5, 6; the cocking lever 11 being returned by a spring 19 (or spring plate 23), Fig. 4 (not shown). (b) released by a shutter release (not shown), which rotates detent 5 to allow a spring 13 to rotate lever 1 clockwise to open opening blades 21 whereupon pin 1b strikes portion 11a of cocking lever 11 and is prevented from rebounding by portion 11c. By preventing lever 1 from rebounding, rebound of blades 21 is prevented. As shown, after a photo-electrically timed period an electromagnet 16 is de-energized to release detent 6 to allow a spring 14 to rotate lever 2 clockwise to close closing blades (22), Fig. 1 (not shown).
GB3721974A 1974-08-23 1974-08-23 Camera shutter mechanism Expired GB1452416A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB3721974A GB1452416A (en) 1974-08-23 1974-08-23 Camera shutter mechanism

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB3721974A GB1452416A (en) 1974-08-23 1974-08-23 Camera shutter mechanism

Publications (1)

Publication Number Publication Date
GB1452416A true GB1452416A (en) 1976-10-13

Family

ID=10394738

Family Applications (1)

Application Number Title Priority Date Filing Date
GB3721974A Expired GB1452416A (en) 1974-08-23 1974-08-23 Camera shutter mechanism

Country Status (1)

Country Link
GB (1) GB1452416A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2452726A1 (en) * 1979-03-26 1980-10-24 Canon Kk Shutter for SLR camera - is in form of front and rear shutter curtains operated by electromagnetic drive shafts

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2452726A1 (en) * 1979-03-26 1980-10-24 Canon Kk Shutter for SLR camera - is in form of front and rear shutter curtains operated by electromagnetic drive shafts

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Legal Events

Date Code Title Description
PS Patent sealed
PCNP Patent ceased through non-payment of renewal fee