JPS6044034U - Overhead projector safety device - Google Patents
Overhead projector safety deviceInfo
- Publication number
- JPS6044034U JPS6044034U JP13617783U JP13617783U JPS6044034U JP S6044034 U JPS6044034 U JP S6044034U JP 13617783 U JP13617783 U JP 13617783U JP 13617783 U JP13617783 U JP 13617783U JP S6044034 U JPS6044034 U JP S6044034U
- Authority
- JP
- Japan
- Prior art keywords
- support
- projection unit
- base
- overhead projector
- safety device
- 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
(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.
Description
第１図は本実施例に係るオーバヘッドプロジェクタの全
体構成を示す側面図、第２図は本実施例の正面図、第３
図は本実施例の左側面図、第４図は本実施例の右側面図
、第５図は投影ユニットを折畳んだ状態を示す本実施例
の断面図、第６図はオーバレバヘッドプロジエクタを収
納した状態を示す本実施例の断面図である。
１０・・・収納用箱体、１２，１４・・・蓋半体、２０
Ａ、２０Ｂ・・・支柱、２２・・・投影ユニット、３６
・・・基盤、４２・・・ミラーフレネル板、４６・・・
ステー、５４・・・係止板、５５・・・スプリング、６
２・・・可動レバー、６４・・・ノブ、７０・・・溝、
７２・・・凹部、７４・・田ツク板、７６・・・スプリ
ング、８０・・・共通軸、８２・・・レバー、８４・・
・爪、８６・・・突起部、８８・・・プレート。FIG. 1 is a side view showing the overall configuration of an overhead projector according to this embodiment, FIG. 2 is a front view of this embodiment, and FIG.
The figure is a left side view of this embodiment, FIG. 4 is a right side view of this embodiment, FIG. 5 is a sectional view of this embodiment showing the projection unit in a folded state, and FIG. 6 is an over-leverhead projector. FIG. 2 is a cross-sectional view of this embodiment showing a state in which the Ector is stored. 10... Storage box, 12, 14... Lid half, 20
A, 20B... Support column, 22... Projection unit, 36
...Base, 42...Mirror Fresnel board, 46...
Stay, 54... Locking plate, 55... Spring, 6
2... Movable lever, 64... Knob, 70... Groove,
72... recess, 74... tab, 76... spring, 80... common shaft, 82... lever, 84...
- Claw, 86... protrusion, 88... plate.
Claims (1)
変換ミラーを介してスクリーン上に拡大０、 投
影するオーバヘッドプロジェクタにおいて、フレネル板
が取付けられた基盤と、下端部が基盤に枢支されると共
に上方に延在し、基盤に対して折畳み可能な支柱と、支
柱の上部に枢支され支柱に対して折畳み可能な投影レン
ズ、方向変換ミラー等を含む投影ユニットと、前記投影
ユニットと連動され支柱の回動を阻止可能なロック機構
とを設け、前記ロック機構は投影ユニットを折畳むと支
柱のロックを解除することを特徴とする安全装置。An overhead projector that magnifies and projects light emitted from a light source onto a screen via a Fresnel plate, a projection lens, and a direction conversion mirror, includes a base to which the Fresnel plate is attached, a lower end of which is pivoted to the base, and a support that extends upward and is foldable relative to the base; a projection unit that is pivotally supported at the top of the support and includes a projection lens, a direction conversion mirror, etc. that is foldable relative to the support; a support that is interlocked with the projection unit; a locking mechanism capable of preventing rotation of the projection unit, and the locking mechanism unlocks the support column when the projection unit is folded.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP13617783U JPS6044034U (en) | 1983-09-02 | 1983-09-02 | Overhead projector safety device |
| US06/645,965 US4588271A (en) | 1983-09-02 | 1984-08-31 | Overhead projector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP13617783U JPS6044034U (en) | 1983-09-02 | 1983-09-02 | Overhead projector safety device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS6044034U true JPS6044034U (en) | 1985-03-28 |
| JPH0216348Y2 JPH0216348Y2 (en) | 1990-05-07 |
Family
ID=30306268
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP13617783U Granted JPS6044034U (en) | 1983-09-02 | 1983-09-02 | Overhead projector safety device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6044034U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS61190544U (en) * | 1985-05-20 | 1986-11-27 | ||
| JPS61190545U (en) * | 1985-05-20 | 1986-11-27 |
-
1983
- 1983-09-02 JP JP13617783U patent/JPS6044034U/en active Granted
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS61190544U (en) * | 1985-05-20 | 1986-11-27 | ||
| JPS61190545U (en) * | 1985-05-20 | 1986-11-27 |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0216348Y2 (en) | 1990-05-07 |
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