JPS57138662A - Device for stopping movement of moving material - Google Patents

Device for stopping movement of moving material

Info

Publication number
JPS57138662A
JPS57138662A JP2403081A JP2403081A JPS57138662A JP S57138662 A JPS57138662 A JP S57138662A JP 2403081 A JP2403081 A JP 2403081A JP 2403081 A JP2403081 A JP 2403081A JP S57138662 A JPS57138662 A JP S57138662A
Authority
JP
Japan
Prior art keywords
moving material
original table
pawl
release
receiving part
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
JP2403081A
Other languages
Japanese (ja)
Inventor
Akihiro Nomura
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 JP2403081A priority Critical patent/JPS57138662A/en
Publication of JPS57138662A publication Critical patent/JPS57138662A/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
    • G03B27/00—Photographic printing apparatus
    • G03B27/32—Projection printing apparatus, e.g. enlarger, copying camera
    • G03B27/52—Details
    • G03B27/62—Holders for the original
    • G03B27/6207—Holders for the original in copying cameras

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Optical Systems Of Projection Type Copiers (AREA)

Abstract

PURPOSE:To regulate the quantity of unnecessary deviation of a moving material such as an original table, by controlling the release of engagement synchronously with driving of the moving material. CONSTITUTION:When a solenoid 42 is excited synchronously with the start of movement of an original table and an optical system, a pawl 55 of a detaining pawl device falls to release the engagement with a receiving part, and a spring clutch is connected through a clutch control ring 33 and etc. to move the original table and etc., thus performing exposure or the like. Meanwhile, when the copying operation is not performed or the copying machine main body is opened for maintenance or the like, the pawl 55 rises through a spring 58 to engage with the receiving part, and the quantity of unnecessary deviation of the moving material such as the original table is regulated surely.
JP2403081A 1981-02-20 1981-02-20 Device for stopping movement of moving material Pending JPS57138662A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2403081A JPS57138662A (en) 1981-02-20 1981-02-20 Device for stopping movement of moving material

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2403081A JPS57138662A (en) 1981-02-20 1981-02-20 Device for stopping movement of moving material

Publications (1)

Publication Number Publication Date
JPS57138662A true JPS57138662A (en) 1982-08-27

Family

ID=12127111

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2403081A Pending JPS57138662A (en) 1981-02-20 1981-02-20 Device for stopping movement of moving material

Country Status (1)

Country Link
JP (1) JPS57138662A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0248648A (en) * 1988-08-10 1990-02-19 Mita Ind Co Ltd Device for informing position of original platen

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0248648A (en) * 1988-08-10 1990-02-19 Mita Ind Co Ltd Device for informing position of original platen

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