JPH0430668U - - Google Patents
Info
- Publication number
- JPH0430668U JPH0430668U JP7199390U JP7199390U JPH0430668U JP H0430668 U JPH0430668 U JP H0430668U JP 7199390 U JP7199390 U JP 7199390U JP 7199390 U JP7199390 U JP 7199390U JP H0430668 U JPH0430668 U JP H0430668U
- Authority
- JP
- Japan
- Prior art keywords
- drum
- wire
- mast
- rod
- base
- 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
Landscapes
- Accessories Of Cameras (AREA)
Description
第１図〜第２図はこの考案の一実施例を示す図
、第３図〜第４図は従来使用されてきた機構の図
である。
図において、１は基盤、２はマストの固定シリ
ンダ、３はマストの浮動シリンダ、４はマストの
ロツド、５はコイルスプリング、６はドラム、７
はドラムの駆動装置、８はマストの先端に設置さ
れる機器、９はワイヤである。
第３図は、滑車とワイヤを用いてマストを上下
させる機構の例である。第４図は、油圧を用いて
マストを上下させる機構の例である。なお、図中
同一あるいは相当部分には、同一符号を付して示
してある。
Figures 1 and 2 are views showing an embodiment of this invention, and Figures 3 and 4 are views of a conventionally used mechanism. In the figure, 1 is the base, 2 is the fixed cylinder of the mast, 3 is the floating cylinder of the mast, 4 is the rod of the mast, 5 is the coil spring, 6 is the drum, and 7
is a drum driving device, 8 is a device installed at the tip of the mast, and 9 is a wire. FIG. 3 is an example of a mechanism for raising and lowering a mast using a pulley and wire. FIG. 4 is an example of a mechanism for raising and lowering a mast using hydraulic pressure. It should be noted that the same or corresponding parts in the figures are indicated by the same reference numerals.
Claims (1)
けられる固定シリンダと、その中に挿入される筒
状の浮動シリンダと袋状のロツドと、ロツドに結
ぶつけられた所定の長さのワイヤと、ロツドと基
盤のあいだに収められるスプリングと、上記ワイ
ヤを巻取るドラムとからなり、ふだんはドラムに
よつてワイヤを巻取つた状態にしてマストを縮め
ておき、マスト伸展時にはドラムを回転し、ワイ
ヤをドラムから徐々に解除しロツドをシリンダに
沿つて持ち上げるという、マスト全長の伸縮を、
ワイヤを巻取るドラムを回転するだけで行えるこ
とを特徴とする伸縮マスト。 A base on which the entire device is installed, a fixed cylinder attached to the base, a cylindrical floating cylinder and a bag-shaped rod inserted therein, and a predetermined length of wire tied to the rod; It consists of a spring that is housed between the rod and the base, and a drum that winds up the wire.Normally, the mast is retracted with the wire wound around the drum, and when the mast is extended, the drum is rotated and the wire is wound up. The entire length of the mast is expanded and contracted by gradually releasing the rod from the drum and lifting the rod along the cylinder.
A telescopic mast that can be retracted by simply rotating the drum that winds the wire.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP7199390U JPH0430668U (en) | 1990-07-06 | 1990-07-06 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP7199390U JPH0430668U (en) | 1990-07-06 | 1990-07-06 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0430668U true JPH0430668U (en) | 1992-03-12 |
Family
ID=31609528
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP7199390U Pending JPH0430668U (en) | 1990-07-06 | 1990-07-06 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0430668U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100433038B1 (en) * | 2000-07-08 | 2004-05-31 | 조숙자 | Hight adjuster for prop of projector |
-
1990
- 1990-07-06 JP JP7199390U patent/JPH0430668U/ja active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100433038B1 (en) * | 2000-07-08 | 2004-05-31 | 조숙자 | Hight adjuster for prop of projector |
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