JPS55120024A - Portable see-through projection screen - Google Patents

Portable see-through projection screen

Info

Publication number
JPS55120024A
JPS55120024A JP2745179A JP2745179A JPS55120024A JP S55120024 A JPS55120024 A JP S55120024A JP 2745179 A JP2745179 A JP 2745179A JP 2745179 A JP2745179 A JP 2745179A JP S55120024 A JPS55120024 A JP S55120024A
Authority
JP
Japan
Prior art keywords
projection screen
support lever
square column
extension
holes
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.)
Granted
Application number
JP2745179A
Other languages
Japanese (ja)
Other versions
JPS5810733B2 (en
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 JP54027451A priority Critical patent/JPS5810733B2/en
Publication of JPS55120024A publication Critical patent/JPS55120024A/en
Publication of JPS5810733B2 publication Critical patent/JPS5810733B2/en
Expired legal-status Critical Current

Links

Landscapes

  • Overhead Projectors And Projection Screens (AREA)

Abstract

PURPOSE: To obtain the foldable portable see-through projection screen by suspendedly supporting the central part of the support rod provided at the top end of the projection screen by the end of the support rod which is so provided as to be turned to the end of the stanchion provided on the horizontal side part of the projection screen.
CONSTITUTION: A square stanchion 1 and the extension square column 2 contained vertically slidably therein are supported upright by a foldable tripod (a) and a vertically slidable square pipe 9 is fitted into the extension square column 2. Notches 10, 10' respectively superposing on the inner side at the top ends of the extension square column 2 and square pipe 9 and rectangular through-holes 11, 11' in the lower part on the outer side symmetrical to these are provided. When a horizontal support rod 4 pivotally supported by an axis 12 provided to the upper part of the square pipe 9 is put horizontally, the root part of the horizontal support lever 4 is tense-supported with the bottom faces of the notch holes 10, 10' as fulcrum points and the top inner edges of the through-holes 11, 11' as acting points. The end engaging element 7 of the horizontal support lever 4 is engaged with the central hook 8 of the support lever 5 of a projection screen 6. When folded, the entire part of the horisontal support lever 4 may be slide-fitted into the extension square column 2.
COPYRIGHT: (C)1980,JPO&Japio
JP54027451A 1979-03-08 1979-03-08 portable perspective projection screen Expired JPS5810733B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP54027451A JPS5810733B2 (en) 1979-03-08 1979-03-08 portable perspective projection screen

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP54027451A JPS5810733B2 (en) 1979-03-08 1979-03-08 portable perspective projection screen

Publications (2)

Publication Number Publication Date
JPS55120024A true JPS55120024A (en) 1980-09-16
JPS5810733B2 JPS5810733B2 (en) 1983-02-26

Family

ID=12221476

Family Applications (1)

Application Number Title Priority Date Filing Date
JP54027451A Expired JPS5810733B2 (en) 1979-03-08 1979-03-08 portable perspective projection screen

Country Status (1)

Country Link
JP (1) JPS5810733B2 (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0869056A (en) * 1994-08-26 1996-03-12 Casio Comput Co Ltd Screen device
CN102879991A (en) * 2012-10-26 2013-01-16 昆山集智成模具有限公司 Projection screen bracket

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0394120U (en) * 1990-01-19 1991-09-25

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0869056A (en) * 1994-08-26 1996-03-12 Casio Comput Co Ltd Screen device
CN102879991A (en) * 2012-10-26 2013-01-16 昆山集智成模具有限公司 Projection screen bracket

Also Published As

Publication number Publication date
JPS5810733B2 (en) 1983-02-26

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