JPH0386426U - - Google Patents
Info
- Publication number
- JPH0386426U JPH0386426U JP14559189U JP14559189U JPH0386426U JP H0386426 U JPH0386426 U JP H0386426U JP 14559189 U JP14559189 U JP 14559189U JP 14559189 U JP14559189 U JP 14559189U JP H0386426 U JPH0386426 U JP H0386426U
- Authority
- JP
- Japan
- Prior art keywords
- control
- neutral position
- operating lever
- angle
- signal processing
- 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
- 230000007935 neutral effect Effects 0.000 claims description 10
- 238000010276 construction Methods 0.000 claims description 6
- 239000012530 fluid Substances 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 5
- 238000009429 electrical wiring Methods 0.000 description 2
- 239000004065 semiconductor Substances 0.000 description 1
Landscapes
- Mechanical Control Devices (AREA)
Description
第１図は本考案の一実施例における建設機械の
制御装置の使用状態の電気結線図、第２図は同制
御装置の要部の回路ブロツク図、第３図はポテン
シヨメータの出力電圧の説明図、第４図は本考案
の一実施例における建設機械の制御装置に採用し
た電気ジヨイステイツク装置の横断平面図、第５
図は同縦断正面図、第６図はカムとマイクロスイ
ツチとの位置関係の説明図、第７図は従来の建設
機械の制御装置の使用状態の電気結線図である。
３……操作レバー、１８，１９……ポテンシヨ
メータ、２２，２３……マイクロスイツチ（中立
検出器）、３０ａ〜３０ｄ……半導体スイツチ（
スイツチ手段）、３２，３４……コントロールバ
ルブ、３３ａ，３３ｂ，３５ａ，３５ｂ……ソレ
ノイド、３７……絶対値回路（信号処理手段）、
３８，３９……比較回路（判断手段）、４０……
信号処理回路（信号処理手段）、４１，４２……
論理積回路（スイツチ制御手段）。
Fig. 1 is an electrical wiring diagram of a construction machine control device in use according to an embodiment of the present invention, Fig. 2 is a circuit block diagram of the main parts of the control device, and Fig. 3 is a diagram of the output voltage of the potentiometer. An explanatory drawing, FIG. 4 is a cross-sectional plan view of an electric joystick device adopted as a control device for construction machinery in one embodiment of the present invention, and FIG.
6 is an explanatory diagram of the positional relationship between the cam and the microswitch, and FIG. 7 is an electrical wiring diagram of the conventional construction machine control device in use. 3... Operation lever, 18, 19... Potentiometer, 22, 23... Micro switch (neutral detector), 30a to 30d... Semiconductor switch (
switch means), 32, 34... control valve, 33a, 33b, 35a, 35b... solenoid, 37... absolute value circuit (signal processing means),
38, 39...comparison circuit (judgment means), 40...
Signal processing circuit (signal processing means), 41, 42...
AND circuit (switch control means).
Claims (1)
された操作レバーと、前記操作レバーの中立位置
からの傾斜方向および角度に応じた電圧を出力す
る１対のポテンシヨメータと、前記ポテンシヨメ
ータの出力を処理することにより制御信号を出力
して前記操作レバーの中立位置からの傾斜方向お
よび角度に応じて複数のコントロールバルブを制
御する信号処理手段とを備え、前記複数のコント
ロールバルブにより複数の油圧アクチユエータの
作動油を制御して、前記操作レバーの中立位置か
らの傾斜方向および角度に応じて前記複数の油圧
アクチユエータを作動させる構成とした建設機械
の制御装置において、前記信号処理手段と前記複
数のコントロールバルブとの間に各々介装されて
前記信号処理手段からの制御信号を開閉する複数
のスイツチ手段と、前記操作レバーに対して１対
設置されて操作レバーが中立位置から所定の方向
に所定角度以上傾斜しているか否かを検出する中
立検出器と、前記ポテンシヨメータの出力により
前記操作レバーが中立位置から所定の方向に所定
角度以上傾斜しているか否かを判断する複数の判
断手段と、前記中立検出器と前記判断手段との双
方により前記操作レバーが中立位置から所定の方
向に所定角度以上傾斜していると検出あるいは判
断されたときに前記複数のスイツチ手段のうち前
記操作レバーの中立位置からの傾斜方向に対応す
るスイツチ手段を閉成させる複数のスイツチ制御
手段とを設けたことを特徴とする建設機械の制御
装置。 an operating lever supported so as to be tiltable in any direction about a fulcrum; a pair of potentiometers that output a voltage according to the direction and angle of inclination of the operating lever from a neutral position; signal processing means for outputting a control signal by processing the output to control a plurality of control valves according to the tilting direction and angle of the operating lever from a neutral position; A control device for construction machinery configured to control hydraulic fluid of an actuator to operate the plurality of hydraulic actuators according to an inclination direction and angle from a neutral position of the operating lever, the signal processing means and the plurality of hydraulic actuators comprising: A plurality of switch means are respectively interposed between the control valve and open/close control signals from the signal processing means, and a pair of switch means are installed for the control lever so that the control lever is moved in a predetermined direction from a neutral position. a neutral detector for detecting whether or not the operating lever is tilted at a predetermined angle or more in a predetermined direction from a neutral position based on the output of the potentiometer; and when it is detected or determined by both the neutral detector and the determining means that the operating lever is inclined at a predetermined angle or more in a predetermined direction from the neutral position, the operating lever of the plurality of switch means is activated. 1. A control device for a construction machine, comprising: a plurality of switch control means for closing switch means corresponding to a direction of inclination from a neutral position of the construction machine.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP14559189U JPH0386426U (en) | 1989-12-18 | 1989-12-18 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP14559189U JPH0386426U (en) | 1989-12-18 | 1989-12-18 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0386426U true JPH0386426U (en) | 1991-09-02 |
Family
ID=31692219
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP14559189U Pending JPH0386426U (en) | 1989-12-18 | 1989-12-18 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0386426U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2020107006A (en) * | 2018-12-27 | 2020-07-09 | コベルコ建機株式会社 | Electric operating lever assembly of construction machine |
| JP2020147102A (en) * | 2019-03-12 | 2020-09-17 | 株式会社クボタ | Operation device and work vehicle |
-
1989
- 1989-12-18 JP JP14559189U patent/JPH0386426U/ja active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2020107006A (en) * | 2018-12-27 | 2020-07-09 | コベルコ建機株式会社 | Electric operating lever assembly of construction machine |
| JP2020147102A (en) * | 2019-03-12 | 2020-09-17 | 株式会社クボタ | Operation device and work vehicle |
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