JPH02120497U - - Google Patents
Info
- Publication number
- JPH02120497U JPH02120497U JP2791389U JP2791389U JPH02120497U JP H02120497 U JPH02120497 U JP H02120497U JP 2791389 U JP2791389 U JP 2791389U JP 2791389 U JP2791389 U JP 2791389U JP H02120497 U JPH02120497 U JP H02120497U
- Authority
- JP
- Japan
- Prior art keywords
- solenoid
- operated valve
- actuator
- pressure oil
- gripping 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
- 238000010586 diagram Methods 0.000 description 2
Landscapes
- Forklifts And Lifting Vehicles (AREA)
- Fluid-Pressure Circuits (AREA)
Description
図面は本考案の実施例及び従来例を示し、第１
図は把持装置の操作回路図、第２図は高所作業車
の作業状態を示す側面図、第３図は従来の把持装
置の操作回路図である。
４……伸縮ブーム、５……把持装置、８ａ……
グリツパ、９……操作装置、１０……油圧ポンプ
、１１……管路、１２……電磁切換弁、１３，１
４……管路、１５……電磁操作弁、１６……優先
弁、１９……油圧シリンダ。
The drawings show an embodiment of the present invention and a conventional example.
The figure is an operating circuit diagram of the gripping device, FIG. 2 is a side view showing the working state of the aerial work vehicle, and FIG. 3 is an operating circuit diagram of a conventional gripping device. 4...Telescopic boom, 5...Gripping device, 8a...
Gripper, 9... Operating device, 10... Hydraulic pump, 11... Piping, 12... Solenoid switching valve, 13, 1
4...Pipe line, 15...Solenoid operated valve, 16...Priority valve, 19...Hydraulic cylinder.
Claims (1)
作業車の操作回路において、把持装置を作動させ
るアクチユエータを制御する電磁操作弁とアクチ
ユエータに圧油を供給する油圧ポンプとを連結す
る管路に挿入され電磁操作弁の切換わりに連動し
て切換わり油圧ポンプより吐出された圧油を電磁
操作弁に供給する電磁切換弁と、電磁操作弁と電
磁切換弁とを連結する管路に挿入され常に一定量
の圧油を電磁操作弁に供給する優先弁とを備え、
前記アクチユエータの作動中は常にアクチユエー
タに一定量の圧油を供給するようにしたことを特
徴とする把持装置を設けた作業車の操作回路。 In the operation circuit of a work vehicle equipped with a gripping device for gripping loads, etc. at the tip of the boom, it is inserted into a conduit that connects the electromagnetic operation valve that controls the actuator that operates the gripping device and the hydraulic pump that supplies pressure oil to the actuator. It is inserted into the conduit that connects the solenoid-operated valve and the solenoid-operated valve, which switches in conjunction with the switching of the solenoid-operated valve and supplies the pressure oil discharged from the hydraulic pump to the solenoid-operated valve. It is equipped with a priority valve that supplies a certain amount of pressure oil to the solenoid operated valve,
An operating circuit for a working vehicle equipped with a gripping device, characterized in that a constant amount of pressure oil is always supplied to the actuator while the actuator is in operation.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2791389U JPH0646953Y2 (en) | 1989-03-10 | 1989-03-10 | Operation circuit of work vehicle equipped with gripping device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2791389U JPH0646953Y2 (en) | 1989-03-10 | 1989-03-10 | Operation circuit of work vehicle equipped with gripping device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH02120497U true JPH02120497U (en) | 1990-09-28 |
| JPH0646953Y2 JPH0646953Y2 (en) | 1994-11-30 |
Family
ID=31250826
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2791389U Expired - Lifetime JPH0646953Y2 (en) | 1989-03-10 | 1989-03-10 | Operation circuit of work vehicle equipped with gripping device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0646953Y2 (en) |
-
1989
- 1989-03-10 JP JP2791389U patent/JPH0646953Y2/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0646953Y2 (en) | 1994-11-30 |