JPS6435103A - Hydraulic drive - Google Patents
Hydraulic driveInfo
- Publication number
- JPS6435103A JPS6435103A JP18886887A JP18886887A JPS6435103A JP S6435103 A JPS6435103 A JP S6435103A JP 18886887 A JP18886887 A JP 18886887A JP 18886887 A JP18886887 A JP 18886887A JP S6435103 A JPS6435103 A JP S6435103A
- Authority
- JP
- Japan
- Prior art keywords
- stroke
- operating lever
- insensible
- band
- respect
- 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
Landscapes
- Operation Control Of Excavators (AREA)
- Servomotors (AREA)
Abstract
PURPOSE:To improve following performance and reliability by lowering the limit point of insensible band of flow in an actuator with respect to the stroke of an operating lever. CONSTITUTION:A control means 7 having a first setting means for setting high variation rate of stroke of direction control valves 3a-3c with respect to the stroke of an operating lever 1 and a second setting means for setting a low variation rate is arranged between the operating lever 1 and the direction control valves 3a-3c, and a signal is fed from a pressure detector 27 for detecting the limit point of insensible band of flow through actuators 6a-6c with respect to the stroke of spool of the direction control valves 3a-3c to the control means 7. Since the limit point of flow insensible band can be lowered, following performance and reliability of operation of the operating lever are improved.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP62188868A JP2737779B2 (en) | 1987-07-30 | 1987-07-30 | Hydraulic drive |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP62188868A JP2737779B2 (en) | 1987-07-30 | 1987-07-30 | Hydraulic drive |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS6435103A true JPS6435103A (en) | 1989-02-06 |
JP2737779B2 JP2737779B2 (en) | 1998-04-08 |
Family
ID=16231276
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP62188868A Expired - Fee Related JP2737779B2 (en) | 1987-07-30 | 1987-07-30 | Hydraulic drive |
Country Status (1)
Country | Link |
---|---|
JP (1) | JP2737779B2 (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US7160840B2 (en) | 2001-06-28 | 2007-01-09 | Fuji Photo Film Co., Ltd. | Thermal recording material |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5697604A (en) * | 1980-01-09 | 1981-08-06 | Kayaba Ind Co Ltd | Controller for oil-hydraulic cylinder |
JPS6049106A (en) * | 1983-08-26 | 1985-03-18 | Kayaba Ind Co Ltd | Control device of magnet proportional valve |
JPS60146903A (en) * | 1984-01-07 | 1985-08-02 | Hitachi Constr Mach Co Ltd | Automatic/manual operational control device for hydraulically driven machinery |
-
1987
- 1987-07-30 JP JP62188868A patent/JP2737779B2/en not_active Expired - Fee Related
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5697604A (en) * | 1980-01-09 | 1981-08-06 | Kayaba Ind Co Ltd | Controller for oil-hydraulic cylinder |
JPS6049106A (en) * | 1983-08-26 | 1985-03-18 | Kayaba Ind Co Ltd | Control device of magnet proportional valve |
JPS60146903A (en) * | 1984-01-07 | 1985-08-02 | Hitachi Constr Mach Co Ltd | Automatic/manual operational control device for hydraulically driven machinery |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US7160840B2 (en) | 2001-06-28 | 2007-01-09 | Fuji Photo Film Co., Ltd. | Thermal recording material |
Also Published As
Publication number | Publication date |
---|---|
JP2737779B2 (en) | 1998-04-08 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
LAPS | Cancellation because of no payment of annual fees |