JPS6486804A - Controller for rising speed of working machine - Google Patents
Controller for rising speed of working machineInfo
- Publication number
- JPS6486804A JPS6486804A JP24504787A JP24504787A JPS6486804A JP S6486804 A JPS6486804 A JP S6486804A JP 24504787 A JP24504787 A JP 24504787A JP 24504787 A JP24504787 A JP 24504787A JP S6486804 A JPS6486804 A JP S6486804A
- Authority
- JP
- Japan
- Prior art keywords
- working machine
- upward movement
- limit
- rising speed
- controller
- 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
- 230000000630 rising effect Effects 0.000 title abstract 3
- 230000035939 shock Effects 0.000 abstract 1
Landscapes
- Lifting Devices For Agricultural Implements (AREA)
Abstract
PURPOSE:To shorten a time required for lifting a working machine and simultaneously prevent the generation of a shock at the time of stopping the working machine, by gradually stepwise reducing the rate of supplying electric power to a hydraulic control valve with the access of the working machine to the set limit of its upward movement. CONSTITUTION:A rate of supplying electric power to a hydraulic control valve which controls hydraulic power supplied to a lifting or lowering mechanism 19 is gradually reduced with the access of a working machine B to the set limit of its upward movement during its rising action. The working machine B rises at a high speed when it is apart from the limit of the upward movement, but the rising speed of the working machine B is gradually reduced with approaching to the limit of the upward movement.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP24504787A JPS6486804A (en) | 1987-09-28 | 1987-09-28 | Controller for rising speed of working machine |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP24504787A JPS6486804A (en) | 1987-09-28 | 1987-09-28 | Controller for rising speed of working machine |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS6486804A true JPS6486804A (en) | 1989-03-31 |
Family
ID=17127793
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP24504787A Pending JPS6486804A (en) | 1987-09-28 | 1987-09-28 | Controller for rising speed of working machine |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS6486804A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH0358906U (en) * | 1989-10-12 | 1991-06-10 |
Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS56101404A (en) * | 1980-01-16 | 1981-08-14 | Ishikawajima Shibaura Kikai Kk | Hydraulic controller |
-
1987
- 1987-09-28 JP JP24504787A patent/JPS6486804A/en active Pending
Patent Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS56101404A (en) * | 1980-01-16 | 1981-08-14 | Ishikawajima Shibaura Kikai Kk | Hydraulic controller |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH0358906U (en) * | 1989-10-12 | 1991-06-10 |
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