JPS6474925A - Elevation controller for riding type agricultural working machine - Google Patents
Elevation controller for riding type agricultural working machineInfo
- Publication number
- JPS6474925A JPS6474925A JP23285887A JP23285887A JPS6474925A JP S6474925 A JPS6474925 A JP S6474925A JP 23285887 A JP23285887 A JP 23285887A JP 23285887 A JP23285887 A JP 23285887A JP S6474925 A JPS6474925 A JP S6474925A
- Authority
- JP
- Japan
- Prior art keywords
- ground contact
- contact unit
- working machine
- riding type
- agricultural working
- 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
- Transplanting Machines (AREA)
- Lifting Devices For Agricultural Implements (AREA)
Abstract
PURPOSE:To suppress vertical hunting, by limiting vertical movement of a ground contact unit relatively to fine unevennesses of a plow sole with a damper and carrying out changeover of a control valve only when the ground contact unit is pushed up or lowered for a given time or more. CONSTITUTION:If a ground contact unit 12 is pushed up by fine unevennesses of a plow sole, an oil damper 32 in an interlocking mechanism 22 imparts pushing up resistance thereof to slowly actuate the ground contact unit 12 and prevent rapid changeover of a control valve 19. Hunting of a working machine by excessively changing over the valve 19 is suppressed to carry out smooth elevation control.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP62232858A JPH07102018B2 (en) | 1987-09-16 | 1987-09-16 | Lifting control device for riding farm equipment |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP62232858A JPH07102018B2 (en) | 1987-09-16 | 1987-09-16 | Lifting control device for riding farm equipment |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS6474925A true JPS6474925A (en) | 1989-03-20 |
JPH07102018B2 JPH07102018B2 (en) | 1995-11-08 |
Family
ID=16945920
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP62232858A Expired - Lifetime JPH07102018B2 (en) | 1987-09-16 | 1987-09-16 | Lifting control device for riding farm equipment |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPH07102018B2 (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH03160907A (en) * | 1989-11-16 | 1991-07-10 | Iseki & Co Ltd | Device for lifting and lowering working machine |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS501419U (en) * | 1973-05-11 | 1975-01-09 | ||
JPS602110A (en) * | 1983-06-17 | 1985-01-08 | 株式会社クボタ | Rice planter |
JPS62122516U (en) * | 1986-01-24 | 1987-08-04 |
-
1987
- 1987-09-16 JP JP62232858A patent/JPH07102018B2/en not_active Expired - Lifetime
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS501419U (en) * | 1973-05-11 | 1975-01-09 | ||
JPS602110A (en) * | 1983-06-17 | 1985-01-08 | 株式会社クボタ | Rice planter |
JPS62122516U (en) * | 1986-01-24 | 1987-08-04 |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH03160907A (en) * | 1989-11-16 | 1991-07-10 | Iseki & Co Ltd | Device for lifting and lowering working machine |
Also Published As
Publication number | Publication date |
---|---|
JPH07102018B2 (en) | 1995-11-08 |
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