JPS5785040A - Film feed system - Google Patents

Film feed system

Info

Publication number
JPS5785040A
JPS5785040A JP16213680A JP16213680A JPS5785040A JP S5785040 A JPS5785040 A JP S5785040A JP 16213680 A JP16213680 A JP 16213680A JP 16213680 A JP16213680 A JP 16213680A JP S5785040 A JPS5785040 A JP S5785040A
Authority
JP
Japan
Prior art keywords
film
counter cnt
speed
motor
content
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
JP16213680A
Other languages
Japanese (ja)
Other versions
JPH0241012B2 (en
Inventor
Akira Takahashi
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.)
Ricoh Co Ltd
Original Assignee
Ricoh 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 Ricoh Co Ltd filed Critical Ricoh Co Ltd
Priority to JP16213680A priority Critical patent/JPS5785040A/en
Priority to US06/320,930 priority patent/US4431292A/en
Priority to DE3145594A priority patent/DE3145594C2/en
Priority to DE3152998A priority patent/DE3152998C2/en
Priority to DE3152997A priority patent/DE3152997C2/de
Publication of JPS5785040A publication Critical patent/JPS5785040A/en
Publication of JPH0241012B2 publication Critical patent/JPH0241012B2/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
    • G03B1/00—Film strip handling
    • G03B1/60—Measuring or indicating length of the used or unused film; Counting number of exposures

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Details Of Cameras Including Film Mechanisms (AREA)
  • Winding Of Webs (AREA)
  • Controlling Rewinding, Feeding, Winding, Or Abnormalities Of Webs (AREA)

Abstract

PURPOSE:To improve the accuracy of film stop position by counting the perforations of a film and lowering the film speed when the count number attains a prescribed number. CONSTITUTION:The 2nd, 3rd bit outputs are inputted from a counter CNT to a NAND circuit NAND1, and pulses are inputted from an oscillator OSC. The outputs of an FF1 are fed to buffers A1. A2 through an AND circuit AND1 until the content of a counter CNT goes to 6 upon ending of shutter operation, by which a motor M is run at a full speed. Until the content of the counter CNT goes from 6 to 8, the pulses from the oscillator OSC are inverted by the circuit NAND1, and the motor M is controlled, by which the traveling speed of a film F is lowered. When the content of the counter CNT goes 8 in the state of the lowered speed of the film F, the FF1 inverts to stop the motor; at the same time, the electromagnetic brake is applied to stop the film F. With such constitution, the accuracy of film stop position is improved.
JP16213680A 1980-11-18 1980-11-18 Film feed system Granted JPS5785040A (en)

Priority Applications (5)

Application Number Priority Date Filing Date Title
JP16213680A JPS5785040A (en) 1980-11-18 1980-11-18 Film feed system
US06/320,930 US4431292A (en) 1980-11-18 1981-11-13 Film feeding circuit
DE3145594A DE3145594C2 (en) 1980-11-18 1981-11-17 Control circuit for the film transport motor of a still camera
DE3152998A DE3152998C2 (en) 1980-11-18 1981-11-17 Control circuit for the film transport motor of a still camera
DE3152997A DE3152997C2 (en) 1980-11-18 1981-11-17

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP16213680A JPS5785040A (en) 1980-11-18 1980-11-18 Film feed system

Related Child Applications (1)

Application Number Title Priority Date Filing Date
JP21207291A Division JPH04356035A (en) 1991-08-23 1991-08-23 Film feeding device

Publications (2)

Publication Number Publication Date
JPS5785040A true JPS5785040A (en) 1982-05-27
JPH0241012B2 JPH0241012B2 (en) 1990-09-14

Family

ID=15748717

Family Applications (1)

Application Number Title Priority Date Filing Date
JP16213680A Granted JPS5785040A (en) 1980-11-18 1980-11-18 Film feed system

Country Status (1)

Country Link
JP (1) JPS5785040A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH01133855A (en) * 1987-11-19 1989-05-25 Toshiba Seiki Kk Winding control method for web

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP6723676B1 (en) 2019-12-20 2020-07-15 正通 亀井 Flood-resistant facility with flood-resistant wall

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4893899A (en) * 1972-03-18 1973-12-04
JPS49121524A (en) * 1973-03-20 1974-11-20
JPS50115816A (en) * 1974-02-25 1975-09-10

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4893899A (en) * 1972-03-18 1973-12-04
JPS49121524A (en) * 1973-03-20 1974-11-20
JPS50115816A (en) * 1974-02-25 1975-09-10

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH01133855A (en) * 1987-11-19 1989-05-25 Toshiba Seiki Kk Winding control method for web

Also Published As

Publication number Publication date
JPH0241012B2 (en) 1990-09-14

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