JPS642238U - - Google Patents
Info
- Publication number
- JPS642238U JPS642238U JP9763987U JP9763987U JPS642238U JP S642238 U JPS642238 U JP S642238U JP 9763987 U JP9763987 U JP 9763987U JP 9763987 U JP9763987 U JP 9763987U JP S642238 U JPS642238 U JP S642238U
- Authority
- JP
- Japan
- Prior art keywords
- projection head
- projector
- overhead projector
- light projection
- stored
- 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
Links
- 230000002457 bidirectional effect Effects 0.000 claims 1
- 229910001285 shape-memory alloy Inorganic materials 0.000 claims 1
Landscapes
- Overhead Projectors And Projection Screens (AREA)
Description
第１図は本考案による一実施例の斜視図、第２
図はａ，ｂ第１図の係止手段の一部破断を含む詳
細側面図、第３図は従来ＯＨＰの使用状態を示す
外観斜視図、第４図は第３図のランプハウスの支
持状態を示す要部斜視図、である。
図において、１は原稿載せ台、２は投光ヘツド
、３はアーム、５は支持軸、１０はランプハウス
、１０ａは側板、１１は係止板（係止部）、１２
は突起、１３は係止手段、１３ａは係合部、１３
ｂは係止部、１４はブラケツト、１４ａはガイド
穴、１５は係合ピン（係合部）、１６はコイルば
ね、を示す。
Fig. 1 is a perspective view of one embodiment of the present invention;
Figures a and b are detailed side views including a partial breakage of the locking means in Figures 1, Figure 3 is an external perspective view showing the conventional OHP in use, and Figure 4 is the supported state of the lamp house in Figure 3. FIG. In the figure, 1 is a document mounting table, 2 is a projection head, 3 is an arm, 5 is a support shaft, 10 is a lamp house, 10a is a side plate, 11 is a locking plate (locking part), 12
13 is a projection, 13 is a locking means, 13a is an engaging portion, 13
b indicates a locking portion, 14 a bracket, 14a a guide hole, 15 an engagement pin (engagement portion), and 16 a coil spring.
Claims (1)
ヘツド２を備えた可搬型オーバヘツドプロジエク
タにおいて、上記投光ヘツド２内に、温度に応じ
て伸縮する２方向性形状記憶合金製コイルばね１
６により係合、離反動作し、上記投光ヘツド２が
所定温度に下がるまで収納不可能にロツクする係
止手段１３を備えてなることを特徴とする可搬型
オーバヘツドプロジエクタ。 In a portable overhead projector equipped with a light projection head 2 that is folded and stored in close contact with a document table 1, a coil spring 1 made of a bidirectional shape memory alloy that expands and contracts depending on the temperature is installed in the light projection head 2.
6. A portable overhead projector comprising a locking means 13 that engages and disengages with the projector 6 and locks the projection head 2 so that it cannot be stored until the projection head 2 falls to a predetermined temperature.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP9763987U JPS642238U (en) | 1987-06-24 | 1987-06-24 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP9763987U JPS642238U (en) | 1987-06-24 | 1987-06-24 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS642238U true JPS642238U (en) | 1989-01-09 |
Family
ID=30964800
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP9763987U Pending JPS642238U (en) | 1987-06-24 | 1987-06-24 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS642238U (en) |
-
1987
- 1987-06-24 JP JP9763987U patent/JPS642238U/ja active Pending
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