JPS6180840U - - Google Patents
Info
- Publication number
- JPS6180840U JPS6180840U JP16702484U JP16702484U JPS6180840U JP S6180840 U JPS6180840 U JP S6180840U JP 16702484 U JP16702484 U JP 16702484U JP 16702484 U JP16702484 U JP 16702484U JP S6180840 U JPS6180840 U JP S6180840U
- Authority
- JP
- Japan
- Prior art keywords
- pressure
- solenoid valve
- switch
- set pressure
- boom
- 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
- 230000000630 rising effect Effects 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 4
- 230000001174 ascending effect Effects 0.000 description 1
Landscapes
- Operation Control Of Excavators (AREA)
- Fluid-Pressure Circuits (AREA)
Description
図面は本考案の一実施例を示し、第１図は電気
回路図、第２図は側面図、第３図は油圧回路図、
第４図は制御レバー部の断面図、第５図はスイツ
チの配置図、第６図は動作説明図である。
４……ブーム、６……ブームシリンダ、９……
油圧ポンプ、１２……電磁弁、１３……上昇用ソ
レノイド、１４……下降用ソレノイド、１８……
圧力スイツチ、２０……上昇スイツチ、２２……
下降スイツチ、２６……切換スイツチ。
The drawings show an embodiment of the present invention, in which Fig. 1 is an electric circuit diagram, Fig. 2 is a side view, and Fig. 3 is a hydraulic circuit diagram.
FIG. 4 is a sectional view of the control lever section, FIG. 5 is a layout diagram of the switch, and FIG. 6 is an explanatory diagram of the operation. 4...Boom, 6...Boom cylinder, 9...
Hydraulic pump, 12... Solenoid valve, 13... Ascending solenoid, 14... Descending solenoid, 18...
Pressure switch, 20... Raise switch, 22...
Down switch, 26...changeover switch.
Claims (1)
令を与える昇降用スイツチとを備えたフロントロ
ーダの制御装置において、無負荷でのブーム上昇
時における油圧ポンプ側の油圧よりも大なる設定
圧に設定され、かつ該油圧ポンプ側の油圧が設定
圧よりも大のときに上昇指令を、小のときに下降
指令を夫々前記電磁弁に支えるための圧力スイツ
チを設け、この圧力スイツチと前記昇降用スイツ
チとを選択する切換スイツチを設けたことを特徴
とするフロントローダの制御装置。 In a front loader control device that is equipped with a solenoid valve for raising and lowering the boom and a lifting switch that gives commands to raise and lower the solenoid valve, the set pressure is higher than the hydraulic pressure on the hydraulic pump side when the boom is raised with no load. A pressure switch is provided for supporting the solenoid valve with a rising command when the hydraulic pressure on the hydraulic pump side is greater than the set pressure, and a descending command when it is smaller than the set pressure. 1. A control device for a front loader, characterized in that it is provided with a changeover switch for selecting between.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP16702484U JPH0329410Y2 (en) | 1984-11-01 | 1984-11-01 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP16702484U JPH0329410Y2 (en) | 1984-11-01 | 1984-11-01 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS6180840U true JPS6180840U (en) | 1986-05-29 |
| JPH0329410Y2 JPH0329410Y2 (en) | 1991-06-24 |
Family
ID=30724827
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP16702484U Expired JPH0329410Y2 (en) | 1984-11-01 | 1984-11-01 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0329410Y2 (en) |
-
1984
- 1984-11-01 JP JP16702484U patent/JPH0329410Y2/ja not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0329410Y2 (en) | 1991-06-24 |
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