JPS5674232A - Warning device for erroneous use in camera - Google Patents

Warning device for erroneous use in camera

Info

Publication number
JPS5674232A
JPS5674232A JP15186279A JP15186279A JPS5674232A JP S5674232 A JPS5674232 A JP S5674232A JP 15186279 A JP15186279 A JP 15186279A JP 15186279 A JP15186279 A JP 15186279A JP S5674232 A JPS5674232 A JP S5674232A
Authority
JP
Japan
Prior art keywords
rewinding
switch
film
detection switch
back cover
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
JP15186279A
Other languages
Japanese (ja)
Inventor
Hirosuke Maeda
Hiroshi Ueda
Masatake Niwa
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.)
Minolta Co Ltd
Original Assignee
Minolta 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 Minolta Co Ltd filed Critical Minolta Co Ltd
Priority to JP15186279A priority Critical patent/JPS5674232A/en
Publication of JPS5674232A publication Critical patent/JPS5674232A/en
Pending legal-status Critical Current

Links

Landscapes

  • Indication In Cameras, And Counting Of Exposures (AREA)

Abstract

PURPOSE: To warn the user for erroneous use of the camera to prevent an accident, by controlling the alarm operation through a film detection switch, a back cover opening and closing detection switch, a rewinding button switch, a rewinding rotation switch, and so on.
CONSTITUTION: Film detection lever 4 brought into contact with small-diameter part 2 of spool 1 is rotated clockwise by the upper end part of the loaded film, and film detection switch 7 connects respective switches, which are connected in parallel, and alarm circuit 30 through interlocked lever 6. Consequently, when back cover 34 is opened with the film loaded, cover 34 is opened for closing and locking of cover 34. Back cover opening and closing detection switch 10 is closed before opening, and alarm tone is issued from speaker 33. Similarly, when the push button is operated through rewinding rotation switch 11 and rewinding button switch 21 to start the erroneous rewinding operation before prevention of inversion of the sprocket, alarm tone is issued. Thus, erroneous use is warned to prevent accidents.
COPYRIGHT: (C)1981,JPO&Japio
JP15186279A 1979-11-22 1979-11-22 Warning device for erroneous use in camera Pending JPS5674232A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP15186279A JPS5674232A (en) 1979-11-22 1979-11-22 Warning device for erroneous use in camera

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP15186279A JPS5674232A (en) 1979-11-22 1979-11-22 Warning device for erroneous use in camera

Publications (1)

Publication Number Publication Date
JPS5674232A true JPS5674232A (en) 1981-06-19

Family

ID=15527859

Family Applications (1)

Application Number Title Priority Date Filing Date
JP15186279A Pending JPS5674232A (en) 1979-11-22 1979-11-22 Warning device for erroneous use in camera

Country Status (1)

Country Link
JP (1) JPS5674232A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS57110495U (en) * 1980-12-27 1982-07-08
JPS58118429U (en) * 1982-02-03 1983-08-12 マミヤ光機株式会社 Camera back cover open warning device
JPS6373731U (en) * 1986-10-29 1988-05-17

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS57110495U (en) * 1980-12-27 1982-07-08
JPS6242397Y2 (en) * 1980-12-27 1987-10-30
JPS58118429U (en) * 1982-02-03 1983-08-12 マミヤ光機株式会社 Camera back cover open warning device
JPS6373731U (en) * 1986-10-29 1988-05-17

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