JPS556360A - Auto-winder of camera - Google Patents

Auto-winder of camera

Info

Publication number
JPS556360A
JPS556360A JP7893478A JP7893478A JPS556360A JP S556360 A JPS556360 A JP S556360A JP 7893478 A JP7893478 A JP 7893478A JP 7893478 A JP7893478 A JP 7893478A JP S556360 A JPS556360 A JP S556360A
Authority
JP
Japan
Prior art keywords
motor
current
turns
supply
switch
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
JP7893478A
Other languages
Japanese (ja)
Inventor
Susumu Iguchi
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 JP7893478A priority Critical patent/JPS556360A/en
Publication of JPS556360A publication Critical patent/JPS556360A/en
Pending legal-status Critical Current

Links

Landscapes

  • Details Of Cameras Including Film Mechanisms (AREA)

Abstract

PURPOSE: To supply current to a time constant circuit through a hold switch which maintains a close state while a motor is making film winding operation for one frame and let operation such as stop of current supply to the motor take place when the output thereof reaches the specified value.
CONSTITUTION: When a power source switch SW1 is turned ON and SW3 is closed, a pulse is transmitted to a capacitor C1 and base current is flowed to a transistor Q4 to turn it ON through a diode D2, causing a relay RY to energize to supply power to a motor M. As the motor M revolves, the hold switch SW6 interlocking to the the revolution goes ON to charge a capacitor C2. As the shutter is released, a memory switch SW6 switches to the storage side and the base potential of Q4 becomes equal to the emitter potential and Q4 turns OFF to de-energize the relay RY thereby breaking the power supply to the motor M. At this time, Q1 turns OFF and the charging charges of the C2 are discharged. At the same time Q2 turns OFF to flow current to an LED, thus displaying the shutter under opening. This current turns Q3 OFF and similarly maintains Q4 at OFF.
COPYRIGHT: (C)1980,JPO&Japio
JP7893478A 1978-06-29 1978-06-29 Auto-winder of camera Pending JPS556360A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP7893478A JPS556360A (en) 1978-06-29 1978-06-29 Auto-winder of camera

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP7893478A JPS556360A (en) 1978-06-29 1978-06-29 Auto-winder of camera

Publications (1)

Publication Number Publication Date
JPS556360A true JPS556360A (en) 1980-01-17

Family

ID=13675689

Family Applications (1)

Application Number Title Priority Date Filing Date
JP7893478A Pending JPS556360A (en) 1978-06-29 1978-06-29 Auto-winder of camera

Country Status (1)

Country Link
JP (1) JPS556360A (en)

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5013034A (en) * 1973-05-18 1975-02-10

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5013034A (en) * 1973-05-18 1975-02-10

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