JPS61197087U - - Google Patents
Info
- Publication number
- JPS61197087U JPS61197087U JP8023885U JP8023885U JPS61197087U JP S61197087 U JPS61197087 U JP S61197087U JP 8023885 U JP8023885 U JP 8023885U JP 8023885 U JP8023885 U JP 8023885U JP S61197087 U JPS61197087 U JP S61197087U
- Authority
- JP
- Japan
- Prior art keywords
- switch
- switching valve
- pilot line
- operated
- solenoid
- 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
- 238000010586 diagram Methods 0.000 description 4
Landscapes
- Jib Cranes (AREA)
Description
第１図は本考案の１実施例を示す回路図、第２
図は作業範囲を示す説明図、第３図は他の実施例
を示す回路部分図である。
４は主切換弁、５はアクチユエータ、６は範囲
制限用の電磁切換弁、１４，１５はリミツトスイ
ツチ、１７は操作スイツチ、１８は制限回路を示
す。
Figure 1 is a circuit diagram showing one embodiment of the present invention, Figure 2 is a circuit diagram showing one embodiment of the present invention.
The figure is an explanatory diagram showing the working range, and FIG. 3 is a partial circuit diagram showing another embodiment. 4 is a main switching valve, 5 is an actuator, 6 is a range limiting electromagnetic switching valve, 14 and 15 are limit switches, 17 is an operating switch, and 18 is a limiting circuit.
Claims (1)
パイロツト式主切換弁に接続されたパイロツトラ
イン途中に電磁切換弁を設け、作業機械の施回体
等作業可動部が所要範囲動いた位置で作動するス
イツチ及び作業可動部とは独立した操作スイツチ
を備えた制限回路を前記電磁切換弁に接続し、前
記スイツチの作動で電磁弁がパイロツトラインを
遮断し該状態で操作スイツチの作動により電磁弁
がパイロツトラインを連通する様にしたことを特
徴とする作業制限装置。 An electromagnetic switching valve is provided in the middle of the pilot line connected to the external pilot type main switching valve installed in the pressure oil supply line of the actuator, and a switch and switch that operates when the working movable parts such as the rotating body of the working machine have moved within the required range. A limiting circuit equipped with an operating switch independent of the working movable part is connected to the solenoid switching valve, and when the switch is operated, the solenoid valve shuts off the pilot line, and in this state, when the operating switch is operated, the solenoid valve closes the pilot line. A work restriction device characterized in that it is configured to communicate with each other.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP8023885U JPS61197087U (en) | 1985-05-29 | 1985-05-29 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP8023885U JPS61197087U (en) | 1985-05-29 | 1985-05-29 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS61197087U true JPS61197087U (en) | 1986-12-09 |
Family
ID=30625901
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP8023885U Pending JPS61197087U (en) | 1985-05-29 | 1985-05-29 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS61197087U (en) |
-
1985
- 1985-05-29 JP JP8023885U patent/JPS61197087U/ja active Pending