JPS56135835A - Screen winding braking device - Google Patents

Screen winding braking device

Info

Publication number
JPS56135835A
JPS56135835A JP3948680A JP3948680A JPS56135835A JP S56135835 A JPS56135835 A JP S56135835A JP 3948680 A JP3948680 A JP 3948680A JP 3948680 A JP3948680 A JP 3948680A JP S56135835 A JPS56135835 A JP S56135835A
Authority
JP
Japan
Prior art keywords
screen
winding
cylinder
screw
slider
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
JP3948680A
Other languages
Japanese (ja)
Inventor
Sasuke 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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Priority to JP3948680A priority Critical patent/JPS56135835A/en
Publication of JPS56135835A publication Critical patent/JPS56135835A/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
    • G03B21/54—Accessories
    • G03B21/56—Projection screens
    • G03B21/58—Projection screens collapsible, e.g. foldable; of variable area

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Overhead Projectors And Projection Screens (AREA)
  • Storing, Repeated Paying-Out, And Re-Storing Of Elongated Articles (AREA)

Abstract

PURPOSE:To prevent the occurrence of damages in winding cylinders and screen ends by regulating the movement of a slider moving along guide shaft by the screw integrated with a screen winding cylindrical shaft by way of a cushion body. CONSTITUTION:As a screen winding cylinder 2 revolves, a screen 1 is wound. Along with the revolution of this cylinder 2, the screw 18 integrated with the cylinder 2 turns. Then, the slider 23 screwed to the screw 18 moves along guide shaft 25 and abuts on a cushion body 21, by which the movement of the slider 23 is regulated and the winding of the screen is well braked. Hence, the screen is wound normally without causing any failure at the winding cylinder, screen end, etc.
JP3948680A 1980-03-26 1980-03-26 Screen winding braking device Pending JPS56135835A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP3948680A JPS56135835A (en) 1980-03-26 1980-03-26 Screen winding braking device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP3948680A JPS56135835A (en) 1980-03-26 1980-03-26 Screen winding braking device

Publications (1)

Publication Number Publication Date
JPS56135835A true JPS56135835A (en) 1981-10-23

Family

ID=12554377

Family Applications (1)

Application Number Title Priority Date Filing Date
JP3948680A Pending JPS56135835A (en) 1980-03-26 1980-03-26 Screen winding braking device

Country Status (1)

Country Link
JP (1) JPS56135835A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6080439U (en) * 1983-11-09 1985-06-04 オーエススクリーン株式会社 automatic screen device
EP0919854A1 (en) * 1997-11-27 1999-06-02 Kabushiki Kaisha Nichibei Roll screen

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6080439U (en) * 1983-11-09 1985-06-04 オーエススクリーン株式会社 automatic screen device
EP0919854A1 (en) * 1997-11-27 1999-06-02 Kabushiki Kaisha Nichibei Roll screen
US6378594B1 (en) 1997-11-27 2002-04-30 Kabushiki Kaisha Nichibei Roll screen

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