JPH0472997U - - Google Patents
Info
- Publication number
- JPH0472997U JPH0472997U JP11538990U JP11538990U JPH0472997U JP H0472997 U JPH0472997 U JP H0472997U JP 11538990 U JP11538990 U JP 11538990U JP 11538990 U JP11538990 U JP 11538990U JP H0472997 U JPH0472997 U JP H0472997U
- Authority
- JP
- Japan
- Prior art keywords
- alarm
- limit contact
- electrode plate
- outrigger
- switch
- 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
- Jib Cranes (AREA)
- Forklifts And Lifting Vehicles (AREA)
- Vehicle Cleaning, Maintenance, Repair, Refitting, And Outriggers (AREA)
Description
図はこの考案の実施例を示し、第１図はこの考
案の使用状態を示す斜視図、第２図はこの考案の
概略構成図、第３図ａ，ｂは夫々この考案の装置
の設置状態におけるアウトリガー浮上警報用スイ
ツチの構成図及びアウトリガー沈下警報用イツチ
の構成図、第４図ａ，ｂは夫々この考案の装置の
警報時におけるアウトリガー浮上警報用スイツチ
の構成図及びアウトリガー沈下警報用イツチの構
成図、第５図はこの考案を使用する、ユニツクク
レーンの使用状態を示す正面図である。
なお図中２はマグネツトブロツク、３は箱型枠
体、４は乾電池、６はブザー、７はアウトリガー
浮上警報用スイツチ、８はアウトリガー沈下警報
用スイツチ、９は上限接点、１０は下限接点、１
１はレバー、１２は電極板、１４はバネ、１５は
レバーである。
The figures show an embodiment of this invention, Fig. 1 is a perspective view showing the usage state of this invention, Fig. 2 is a schematic configuration diagram of this invention, and Figs. 3 a and b are respective installation states of the device of this invention. Figures 4a and 4b are diagrams showing the configuration of the outrigger floating alarm switch and the outrigger sinking alarm switch, respectively, at the time of alarm in the device of this invention. FIG. 5 is a front view showing the state of use of a unit crane using this invention. In the figure, 2 is a magnetic block, 3 is a box-shaped frame, 4 is a dry battery, 6 is a buzzer, 7 is an outrigger floating alarm switch, 8 is an outrigger sinking alarm switch, 9 is an upper limit contact, 10 is a lower limit contact, 1
1 is a lever, 12 is an electrode plate, 14 is a spring, and 15 is a lever.
Claims (1)
ら成る警報回路を設け、この警報回路には相互に
並列した二つのスイツチを設け、各スイツチは夫
々上限接点と下限接点を対向して設け、両接点間
を昇降接触自在な電極板を設け、この電極板を常
時下限接点に接触するよう押圧するバネを設け、
これらの各電極板下面から上記枠体下方に垂下し
たレバーを設け、上記スイツチの一方は上記電極
板が下限接点に接触した際上記警報回路が閉路す
るアウトリガー浮上警報用スイツチとし、また上
記スイツチの他方は上記電極板が上限接点に接触
した際上記警報回路が閉路するアウトリガー沈下
警報用スイツチとするとともに、アウトリガー浮
上警報用スイツチの電極板が上限接点に接触した
際当該レバーの下端が、アウトリガー沈下警報用
スイツチのレバーの下端よりやや長くなつている
構成としたことを特徴とする、ユニツククレーン
の転倒防止警報装置。 An alarm circuit consisting of a power source and an alarm is installed in a frame with a magnet on one side, and this alarm circuit is equipped with two switches that are parallel to each other. Each switch has an upper limit contact and a lower limit contact facing each other. , an electrode plate is provided between both contacts that can be moved up and down, and a spring is provided to press this electrode plate so that it is always in contact with the lower limit contact.
A lever is provided that hangs down from the lower surface of each of the electrode plates below the frame body, and one of the switches is an outrigger floating alarm switch that closes the alarm circuit when the electrode plate contacts the lower limit contact. The other is an outrigger sinking alarm switch that closes the alarm circuit when the electrode plate contacts the upper limit contact, and the lower end of the lever is configured to close the outrigger sinking alarm switch when the electrode plate of the outrigger floating alarm switch contacts the upper limit contact. A fall prevention alarm device for a unit crane, characterized in that the lever is slightly longer than the lower end of the alarm switch.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP11538990U JPH0628546Y2 (en) | 1990-11-05 | 1990-11-05 | Fall prevention alarm device for UNIC crane |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP11538990U JPH0628546Y2 (en) | 1990-11-05 | 1990-11-05 | Fall prevention alarm device for UNIC crane |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0472997U true JPH0472997U (en) | 1992-06-26 |
| JPH0628546Y2 JPH0628546Y2 (en) | 1994-08-03 |
Family
ID=31863156
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP11538990U Expired - Lifetime JPH0628546Y2 (en) | 1990-11-05 | 1990-11-05 | Fall prevention alarm device for UNIC crane |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0628546Y2 (en) |
-
1990
- 1990-11-05 JP JP11538990U patent/JPH0628546Y2/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0628546Y2 (en) | 1994-08-03 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| EXPY | Cancellation because of completion of term |