JPS57211131A - Rewind stop device - Google Patents

Rewind stop device

Info

Publication number
JPS57211131A
JPS57211131A JP9640481A JP9640481A JPS57211131A JP S57211131 A JPS57211131 A JP S57211131A JP 9640481 A JP9640481 A JP 9640481A JP 9640481 A JP9640481 A JP 9640481A JP S57211131 A JPS57211131 A JP S57211131A
Authority
JP
Japan
Prior art keywords
film
power source
motor
stop
spool
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
JP9640481A
Other languages
Japanese (ja)
Other versions
JPS6313522B2 (en
Inventor
Yukio Mashita
Akio Sunochi
Noriyoshi Iwashita
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.)
Canon Inc
Original Assignee
Canon Inc
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 Canon Inc filed Critical Canon Inc
Priority to JP9640481A priority Critical patent/JPS57211131A/en
Publication of JPS57211131A publication Critical patent/JPS57211131A/en
Publication of JPS6313522B2 publication Critical patent/JPS6313522B2/ja
Granted 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
    • G03B17/00—Details of cameras or camera bodies; Accessories therefor
    • G03B17/42—Interlocking between shutter operation and advance of film or change of plate or cut-film
    • G03B17/425—Interlocking between shutter operation and advance of film or change of plate or cut-film motor drive cameras

Landscapes

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

Abstract

PURPOSE:To keep always the film stop position constant, by changing the time from detection of the film end to stop of the motor, in accordance with the power source voltage in the film rewinding device for camera. CONSTITUTION:When a film is rewound, a switch 2 is switched to the side of a contact (a), and the current from a power source EM is supplied to a motor M through a transistor (TR) Q4. When the film end is slipped off from a spool, a switch 5 provided in the rear side of the spool is closed. Then, TRs Q8 and Q7 are made conductive to start charging to a capacitor C0. A Zener diode is connected in the emitter side of a TR Q6; and therefore, when the power source voltage is loweed, the time to conduction is made longer, and the stop of a motor due to conduction of a TR Q5 is delayed, and thus, the stop position of the film end part is kept constant approximately.
JP9640481A 1981-06-22 1981-06-22 Rewind stop device Granted JPS57211131A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP9640481A JPS57211131A (en) 1981-06-22 1981-06-22 Rewind stop device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP9640481A JPS57211131A (en) 1981-06-22 1981-06-22 Rewind stop device

Publications (2)

Publication Number Publication Date
JPS57211131A true JPS57211131A (en) 1982-12-24
JPS6313522B2 JPS6313522B2 (en) 1988-03-25

Family

ID=14164020

Family Applications (1)

Application Number Title Priority Date Filing Date
JP9640481A Granted JPS57211131A (en) 1981-06-22 1981-06-22 Rewind stop device

Country Status (1)

Country Link
JP (1) JPS57211131A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4945370A (en) * 1988-04-06 1990-07-31 Minolta Camera Kabushiki Kaisha Film rewinding system of camera
US5659829A (en) * 1984-11-14 1997-08-19 Minolta Camera Kabushiki Kaisha Film rewinding mechanism that fully retracts the film or leaves it partially extended
USRE36246E (en) * 1986-04-01 1999-07-06 Nikon Corporation Film rewinder

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4412752Y1 (en) * 1964-11-26 1969-05-27
JPS50131518A (en) * 1974-04-04 1975-10-17
JPS5127925A (en) * 1974-09-03 1976-03-09 Canon Kk Kamerano fuirumumakimodoshisochi
JPS5340235U (en) * 1976-08-12 1978-04-07
JPS5515132A (en) * 1978-07-18 1980-02-02 Canon Inc Motor rewinder of film

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5227499A (en) * 1975-08-27 1977-03-01 Dai Ichi Kogyo Seiyaku Co Ltd Process for recovery of polyurethane resins

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4412752Y1 (en) * 1964-11-26 1969-05-27
JPS50131518A (en) * 1974-04-04 1975-10-17
JPS5127925A (en) * 1974-09-03 1976-03-09 Canon Kk Kamerano fuirumumakimodoshisochi
JPS5340235U (en) * 1976-08-12 1978-04-07
JPS5515132A (en) * 1978-07-18 1980-02-02 Canon Inc Motor rewinder of film

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5659829A (en) * 1984-11-14 1997-08-19 Minolta Camera Kabushiki Kaisha Film rewinding mechanism that fully retracts the film or leaves it partially extended
USRE36246E (en) * 1986-04-01 1999-07-06 Nikon Corporation Film rewinder
US4945370A (en) * 1988-04-06 1990-07-31 Minolta Camera Kabushiki Kaisha Film rewinding system of camera

Also Published As

Publication number Publication date
JPS6313522B2 (en) 1988-03-25

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