JPS57209156A - Sheet stopper device - Google Patents

Sheet stopper device

Info

Publication number
JPS57209156A
JPS57209156A JP9323281A JP9323281A JPS57209156A JP S57209156 A JPS57209156 A JP S57209156A JP 9323281 A JP9323281 A JP 9323281A JP 9323281 A JP9323281 A JP 9323281A JP S57209156 A JPS57209156 A JP S57209156A
Authority
JP
Japan
Prior art keywords
film
brake
roller
microfilm
brake roller
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
JP9323281A
Other languages
Japanese (ja)
Inventor
Yasutoshi Sugita
Yasuo Kuroda
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 JP9323281A priority Critical patent/JPS57209156A/en
Publication of JPS57209156A publication Critical patent/JPS57209156A/en
Pending 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
    • G03B21/00—Projectors or projection-type viewers; Accessories therefor
    • G03B21/10—Projectors with built-in or built-on screen
    • G03B21/11—Projectors with built-in or built-on screen for microfilm reading
    • G03B21/111—Projectors with built-in or built-on screen for microfilm reading of roll films
    • G03B21/113—Handling roll films

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Registering, Tensioning, Guiding Webs, And Rollers Therefor (AREA)
  • Controlling Rewinding, Feeding, Winding, Or Abnormalities Of Webs (AREA)

Abstract

PURPOSE:To stop a film to a prescribed position without causing the damage to the film, in the captioned stopper device used for a microfilm or the like, by rocking a holding member with a stop signal, holding a brake device to the holding member and forcibly contacting a roller of the brake device to the film. CONSTITUTION:When a detector 23 detects a mark of a desired frame, a brake solenoid 38a is operated simulraneously with a motor 15 inoperative by a generated stop signal. If a brake roller 35a is blocked its rotation by this operation in the above, a microfilm F and rotation of the brake roller 35a are blocked, and friction froce of contact surfaces of the film F and the brake roller 35a applies force to the brake roller 35a tending to rotate counter clockwise around a supporting shaft 37a as the center. As a result, drag is generated, and its component force is applied as friction force for a film surface, then the brake roller 35a and roller 34a are contacted under pressure through the microfilm F, thus the film F is stopped.
JP9323281A 1981-06-16 1981-06-16 Sheet stopper device Pending JPS57209156A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP9323281A JPS57209156A (en) 1981-06-16 1981-06-16 Sheet stopper device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP9323281A JPS57209156A (en) 1981-06-16 1981-06-16 Sheet stopper device

Publications (1)

Publication Number Publication Date
JPS57209156A true JPS57209156A (en) 1982-12-22

Family

ID=14076789

Family Applications (1)

Application Number Title Priority Date Filing Date
JP9323281A Pending JPS57209156A (en) 1981-06-16 1981-06-16 Sheet stopper device

Country Status (1)

Country Link
JP (1) JPS57209156A (en)

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