JPH03107488U - - Google Patents
Info
- Publication number
- JPH03107488U JPH03107488U JP1654390U JP1654390U JPH03107488U JP H03107488 U JPH03107488 U JP H03107488U JP 1654390 U JP1654390 U JP 1654390U JP 1654390 U JP1654390 U JP 1654390U JP H03107488 U JPH03107488 U JP H03107488U
- Authority
- JP
- Japan
- Prior art keywords
- limit value
- working posture
- mobile crane
- limit
- 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
- 238000001514 detection method Methods 0.000 claims description 9
- 230000002265 prevention Effects 0.000 claims description 4
- 238000010586 diagram Methods 0.000 description 5
- 238000009434 installation Methods 0.000 description 4
Landscapes
- Jib Cranes (AREA)
Description
第１図は移動式クレーンの作業状態を示す側面
図、第２図は本考案の過負荷防止装置の説明図、
第３図は過負荷防止装置の手動選択スイツチと表
示パネルの説明図、第４図はカウンタウエイト装
着状態検出スイツチの取付け状態の説明図、第５
図はアウトリガ張出幅検出器の説明図である。
伸縮ブーム……３、負荷検出手段……１３、演
算手段……１４、手動選択スイツチ……２０，２
３、作業姿勢検出手段カウンタウエイト装着状態
検出スイツチ……２５，２６，２７、アウトリガ
張出幅検出器……２９。
Fig. 1 is a side view showing the working state of the mobile crane, Fig. 2 is an explanatory diagram of the overload prevention device of the present invention,
Fig. 3 is an explanatory diagram of the manual selection switch and display panel of the overload prevention device, Fig. 4 is an explanatory diagram of the installation state of the counterweight installation state detection switch, and Fig. 5 is an explanatory diagram of the installation state of the counterweight installation state detection switch.
The figure is an explanatory diagram of an outrigger extension width detector. Telescopic boom...3, Load detection means...13, Calculation means...14, Manual selection switch...20,2
3. Working posture detection means Counterweight attachment state detection switch...25, 26, 27, Outrigger extension width detector...29.
Claims (1)
値を検出する負荷検出手段と、負荷検出手段が検
出した実際値を限界値と対比し実際値が限界値に
達すると移動式クレーンの動作を制限する制限信
号を出力する演算手段とを備えてなり、特に、前
記演算手段は、移動式クレーンの作業姿勢毎の複
数の限界値を準備しておりこの複数の限界値から
任意の限界値を手動選択スイツチにて選択するよ
う構成した移動式クレーンの過負荷防止装置に用
いられる限界値選択安全装置であつて、 手動選択スイツチにより選択される各限界値に
対応する移動式クレーンの各作業姿勢を識別可能
に検出する作業姿勢検出手段を設け、この作業姿
勢検出手段の検出信号を前記演算手段に入力し、
前記演算手段は、前記手動選択スイツチが作業姿
勢検出手段の検出した移動式クレーンの実際の作
業姿勢に該当する限界値よりも大きな値の限界値
を選択するよう操作された時、当該手動選択スイ
ツチによる限界値の選択を不能にするよう構成し
ていることを特徴とする移動式クレーンの過負荷
防止装置における限界値選択安全装置。[Scope of Claim for Utility Model Registration] A load detection means for detecting the actual value of the load acting on the boom of a mobile crane, and the actual value detected by the load detection means is compared with a limit value, and when the actual value reaches the limit value. and calculation means for outputting a limit signal that limits the operation of the mobile crane, and in particular, the calculation means prepares a plurality of limit values for each working posture of the mobile crane, and the calculation means prepares a plurality of limit values for each working posture of the mobile crane. A limit value selection safety device used in an overload prevention device for a mobile crane configured to select an arbitrary limit value from a manual selection switch using a manual selection switch, the limit value selection safety device being configured to select an arbitrary limit value from Providing a working posture detecting means for detecting each working posture of the type crane in a distinguishable manner, inputting a detection signal of the working posture detecting means to the calculating means,
The calculation means is configured to operate the manual selection switch when the manual selection switch is operated to select a limit value that is larger than the limit value corresponding to the actual working posture of the mobile crane detected by the working posture detection means. A limit value selection safety device in an overload prevention device for a mobile crane, characterized in that the limit value selection safety device is configured to disable selection of the limit value by the operator.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1654390U JP2507247Y2 (en) | 1990-02-20 | 1990-02-20 | Limit value selection safety device for overload prevention device of mobile crane |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1654390U JP2507247Y2 (en) | 1990-02-20 | 1990-02-20 | Limit value selection safety device for overload prevention device of mobile crane |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH03107488U true JPH03107488U (en) | 1991-11-06 |
| JP2507247Y2 JP2507247Y2 (en) | 1996-08-14 |
Family
ID=31519804
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1654390U Expired - Fee Related JP2507247Y2 (en) | 1990-02-20 | 1990-02-20 | Limit value selection safety device for overload prevention device of mobile crane |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2507247Y2 (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2006315843A (en) * | 2005-05-16 | 2006-11-24 | Kobelco Cranes Co Ltd | Crane and its weight detection device |
| KR200450264Y1 (en) * | 2010-06-08 | 2010-09-20 | 민인서 | A Tooth Brush Dryer Which has a Steam Sterilizer |
-
1990
- 1990-02-20 JP JP1654390U patent/JP2507247Y2/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2006315843A (en) * | 2005-05-16 | 2006-11-24 | Kobelco Cranes Co Ltd | Crane and its weight detection device |
| JP4678233B2 (en) * | 2005-05-16 | 2011-04-27 | コベルコクレーン株式会社 | Crane and its weight detection device |
| KR200450264Y1 (en) * | 2010-06-08 | 2010-09-20 | 민인서 | A Tooth Brush Dryer Which has a Steam Sterilizer |
Also Published As
| Publication number | Publication date |
|---|---|
| JP2507247Y2 (en) | 1996-08-14 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| LAPS | Cancellation because of no payment of annual fees |