JPH0324938B2 - - Google Patents
Info
- Publication number
- JPH0324938B2 JPH0324938B2 JP10425985A JP10425985A JPH0324938B2 JP H0324938 B2 JPH0324938 B2 JP H0324938B2 JP 10425985 A JP10425985 A JP 10425985A JP 10425985 A JP10425985 A JP 10425985A JP H0324938 B2 JPH0324938 B2 JP H0324938B2
- Authority
- JP
- Japan
- Prior art keywords
- boom
- switch
- solenoid
- lowering
- contact
- 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.)
- Expired
Links
- 238000001514 detection method Methods 0.000 claims description 9
- 230000005284 excitation Effects 0.000 claims description 5
- 230000000630 rising effect Effects 0.000 description 6
- 238000010586 diagram Methods 0.000 description 4
- 230000007935 neutral effect Effects 0.000 description 4
- 230000001174 ascending effect Effects 0.000 description 3
- 230000008602 contraction Effects 0.000 description 3
- 239000003921 oil Substances 0.000 description 3
- 230000007423 decrease Effects 0.000 description 2
- 230000005347 demagnetization Effects 0.000 description 2
- 239000004576 sand Substances 0.000 description 2
- 238000007796 conventional method Methods 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000010720 hydraulic oil Substances 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 230000035939 shock Effects 0.000 description 1
Classifications
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02F—DREDGING; SOIL-SHIFTING
- E02F9/00—Component parts of dredgers or soil-shifting machines, not restricted to one of the kinds covered by groups E02F3/00 - E02F7/00
- E02F9/20—Drives; Control devices
- E02F9/22—Hydraulic or pneumatic drives
- E02F9/2203—Arrangements for controlling the attitude of actuators, e.g. speed, floating function
Landscapes
- Engineering & Computer Science (AREA)
- Mining & Mineral Resources (AREA)
- Civil Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Structural Engineering (AREA)
- Lifting Devices For Agricultural Implements (AREA)
- Operation Control Of Excavators (AREA)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP10425985A JPS61261532A (ja) | 1985-05-15 | 1985-05-15 | 作業機のブ−ム昇降制御装置 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP10425985A JPS61261532A (ja) | 1985-05-15 | 1985-05-15 | 作業機のブ−ム昇降制御装置 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS61261532A JPS61261532A (ja) | 1986-11-19 |
| JPH0324938B2 true JPH0324938B2 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) | 1991-04-04 |
Family
ID=14375932
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP10425985A Granted JPS61261532A (ja) | 1985-05-15 | 1985-05-15 | 作業機のブ−ム昇降制御装置 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS61261532A (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0791842B2 (ja) * | 1988-01-18 | 1995-10-09 | 株式会社小松製作所 | バケットレベラ装置 |
| JPH082188Y2 (ja) * | 1988-05-20 | 1996-01-24 | 東洋運搬機株式会社 | 荷役位置制御装置 |
| JPH0358904U (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) * | 1989-10-12 | 1991-06-10 |
-
1985
- 1985-05-15 JP JP10425985A patent/JPS61261532A/ja active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS61261532A (ja) | 1986-11-19 |