JPS61186804U - - Google Patents
Info
- Publication number
- JPS61186804U JPS61186804U JP7059985U JP7059985U JPS61186804U JP S61186804 U JPS61186804 U JP S61186804U JP 7059985 U JP7059985 U JP 7059985U JP 7059985 U JP7059985 U JP 7059985U JP S61186804 U JPS61186804 U JP S61186804U
- Authority
- JP
- Japan
- Prior art keywords
- valve
- actuator
- hydraulic circuit
- logic
- pressure oil
- 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
- 238000013016 damping Methods 0.000 claims description 2
Landscapes
- Operation Control Of Excavators (AREA)
- Fluid-Pressure Circuits (AREA)
Description
第１図は本考案アクチユエータの油圧回路の実
施例、第２図は他の実施例を示し、第３図は従来
装置の油圧回路を示す。第４図は従来装置におけ
る油圧波形、第５図は第１図の装置における油圧
波形を示す。
１…ポンプ、２…操作弁、３…アクチユエータ
、４…ロジツク弁、４ａ…ロジツク弁ポペツト、
１２…ダンピングシリンダ、１３…絞り、１４…
チエツク弁。
FIG. 1 shows an embodiment of the hydraulic circuit of the actuator of the present invention, FIG. 2 shows another embodiment, and FIG. 3 shows the hydraulic circuit of a conventional device. FIG. 4 shows a hydraulic waveform in the conventional device, and FIG. 5 shows a hydraulic waveform in the device shown in FIG. DESCRIPTION OF SYMBOLS 1... Pump, 2... Operating valve, 3... Actuator, 4... Logic valve, 4a... Logic valve poppet,
12...damping cylinder, 13...diaphragm, 14...
Check valve.
Claims (1)
弁の切換えによつて行う油圧回路において、前記
アクチユエータの一方の油室と前記操作弁との間
の管路にロジツク弁を設けるとともに、前記操作
弁の切換操作に連動し前記ロジツク弁の開閉を制
御する電磁弁を設け、ロジツク弁にダンピング手
段を設けたことに特徴を有するアクチユエータの
油圧回路。 In a hydraulic circuit in which pressure oil is supplied and discharged from a pressure oil source to an actuator by switching an operating valve, a logic valve is provided in a conduit between one of the oil chambers of the actuator and the operating valve; 1. A hydraulic circuit for an actuator, characterized in that a solenoid valve is provided to control the opening and closing of the logic valve in conjunction with a switching operation of the valve, and a damping means is provided in the logic valve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP7059985U JPS61186804U (en) | 1985-05-15 | 1985-05-15 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP7059985U JPS61186804U (en) | 1985-05-15 | 1985-05-15 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS61186804U true JPS61186804U (en) | 1986-11-21 |
Family
ID=30607323
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP7059985U Pending JPS61186804U (en) | 1985-05-15 | 1985-05-15 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS61186804U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0331076A1 (en) * | 1988-03-03 | 1989-09-06 | KABUSHIKI KAISHA KOBE SEIKO SHO also known as Kobe Steel Ltd. | Hydraulic circuit for cylinder |
| WO1989008213A1 (en) * | 1988-02-24 | 1989-09-08 | Hitachi Construction Machinery Co., Ltd. | Valve device |
| JP2005315350A (en) * | 2004-04-28 | 2005-11-10 | Hitachi Constr Mach Co Ltd | Control valve device and pressure circuit |
-
1985
- 1985-05-15 JP JP7059985U patent/JPS61186804U/ja active Pending
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1989008213A1 (en) * | 1988-02-24 | 1989-09-08 | Hitachi Construction Machinery Co., Ltd. | Valve device |
| US5140815A (en) * | 1988-02-24 | 1992-08-25 | Hitachi Construction Machinery Co., Ltd. | Valve apparatus |
| EP0331076A1 (en) * | 1988-03-03 | 1989-09-06 | KABUSHIKI KAISHA KOBE SEIKO SHO also known as Kobe Steel Ltd. | Hydraulic circuit for cylinder |
| JP2005315350A (en) * | 2004-04-28 | 2005-11-10 | Hitachi Constr Mach Co Ltd | Control valve device and pressure circuit |
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