JPS55120024A - Portable see-through projection screen - Google Patents
Portable see-through projection screenInfo
- 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
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
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)
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)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH0394120U (en) * | 1990-01-19 | 1991-09-25 |
-
1979
- 1979-03-08 JP JP54027451A patent/JPS5810733B2/en not_active Expired
Cited By (2)
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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