JP2000016784A5 - - Google Patents
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- Publication number
- JP2000016784A5 JP2000016784A5 JP1998201291A JP20129198A JP2000016784A5 JP 2000016784 A5 JP2000016784 A5 JP 2000016784A5 JP 1998201291 A JP1998201291 A JP 1998201291A JP 20129198 A JP20129198 A JP 20129198A JP 2000016784 A5 JP2000016784 A5 JP 2000016784A5
- Authority
- JP
- Japan
- Prior art keywords
- boom
- posture
- detecting means
- workbench
- control signal
- 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
- 238000005452 bending Methods 0.000 description 3
- 238000001514 detection method Methods 0.000 description 3
Description
そして、ブーム３の先端部（上ブーム３ｂの先端部）と作業台４との間には、作業台４をブーム３の起伏または屈伸にかかわらず水平に維持するレベリング装置が取り付けられている。このレベリング装置は、作業題を上下方向に揺動させるための揺動アクチュエータ５、揺動アクチュエータ５の駆動を制御する駆動制御手段６、および、駆動制御手段６を作動させるレベリング制御手段７（図３参照）とで構成されている。レベリング制御手段７は、図３に示すように、ブーム３の姿勢を検出するブーム姿勢検出手段８と、ブーム３先端に対する作業台４の傾斜を検出する揺動角検出手段９と、これら両検出手段８，９からの検出値からブーム３の姿勢変更にかかわらず作業台４の対地姿勢を一定に維持させる制御信号を演算算出して前記駆動制御手段６へ出力する制御信号出力部１０とで構成している。 A leveling device for maintaining the workbench 4 horizontally regardless of the undulations or bending and stretching of the boom 3 is attached between the tip of the boom 3 (the tip of the upper boom 3b) and the workbench 4. This leveling device includes a swing actuator 5 for swinging a work subject in the vertical direction, a drive control means 6 for controlling the drive of the swing actuator 5, and a leveling control means 7 for operating the drive control means 6 (FIG. FIG. 3) and. As shown in FIG. 3, the leveling control means 7 detects both the boom posture detecting means 8 for detecting the posture of the boom 3 and the swing angle detecting means 9 for detecting the inclination of the workbench 4 with respect to the tip of the boom 3. The control signal output unit 10 calculates and calculates a control signal for maintaining the ground posture of the workbench 4 constant regardless of the posture change of the boom 3 from the detected values from the means 8 and 9, and outputs the control signal to the drive control means 6. It is configured.
前記制御信号出力部１０は、ブーム姿勢検出手段８の検出信号（起伏角検出手段８ａおよび屈伸角検出手段８ｂの検出信号θ１およびθ２）、および、揺動検出手段９の検出信号θ３を用いて、ブーム３の姿勢変更にかかわらず作業台４の対地姿勢を一定に維持させるための制御信号を演算算出して前記駆動制御手段６へ出力するよう構成している。 The control signal output unit 10 uses the detection signals of the boom posture detecting means 8 (detection signals θ1 and θ2 of the undulation angle detecting means 8a and the bending / extending angle detecting means 8b) and the detection signals θ3 of the swing detecting means 9. The control signal for maintaining the ground posture of the workbench 4 is calculated and calculated and output to the drive control means 6 regardless of the posture change of the boom 3.
このように構成したレベリング装置は、ブーム姿勢検出手段８および揺動角検出手段９が、ブーム３の姿勢変更（起伏または屈伸）状況および作業台４の傾斜角）を即座に検出し、これを制御信号出力部１０に伝えるので、ブーム３の姿勢変更に即応したレベリング制御ができるというメリットがあるものの、ブーム３の撓みに基づく作業台４の傾きが補正されないという問題がある。 In the leveling device configured in this way, the boom posture detecting means 8 and the swing angle detecting means 9 immediately detect the posture change (undulation or bending) state of the boom 3 and the inclination angle of the work table 4, and detect this. Since it is transmitted to the control signal output unit 10, there is an advantage that leveling control can be performed immediately in response to a change in the posture of the boom 3, but there is a problem that the inclination of the workbench 4 based on the deflection of the boom 3 is not corrected.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP20129198A JP4177919B2 (en) | 1998-06-30 | 1998-06-30 | Platform leveling device for aerial work platforms |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP20129198A JP4177919B2 (en) | 1998-06-30 | 1998-06-30 | Platform leveling device for aerial work platforms |
Publications (3)
| Publication Number | Publication Date |
|---|---|
| JP2000016784A JP2000016784A (en) | 2000-01-18 |
| JP2000016784A5 true JP2000016784A5 (en) | 2005-10-20 |
| JP4177919B2 JP4177919B2 (en) | 2008-11-05 |
Family
ID=16438554
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP20129198A Expired - Lifetime JP4177919B2 (en) | 1998-06-30 | 1998-06-30 | Platform leveling device for aerial work platforms |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP4177919B2 (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP4648655B2 (en) * | 2004-06-30 | 2011-03-09 | 株式会社アイチコーポレーション | Leveling device for boom type aerial work platform |
| CN104965411B (en) * | 2015-06-12 | 2017-07-25 | 中国电子科技集团公司第三十八研究所 | A kind of leveling support leg lands the adaptive regulation method of detection threshold |
-
1998
- 1998-06-30 JP JP20129198A patent/JP4177919B2/en not_active Expired - Lifetime
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