JPS56150235A - Oil-pressure excavator - Google Patents
Oil-pressure excavatorInfo
- Publication number
- JPS56150235A JPS56150235A JP4952980A JP4952980A JPS56150235A JP S56150235 A JPS56150235 A JP S56150235A JP 4952980 A JP4952980 A JP 4952980A JP 4952980 A JP4952980 A JP 4952980A JP S56150235 A JPS56150235 A JP S56150235A
- Authority
- JP
- Japan
- Prior art keywords
- boom
- base boom
- oil
- tilting
- folding
- 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
- Shovels (AREA)
Abstract
PURPOSE: To raise the stability of wheel during the running period as well as permit the work of excavation in narrow places by folding and housing the working arm device of an oil-pressure excavator within the maximum locus circle of the mounting structure.
CONSTITUTION: The first driving jack 19 takes charge of the action of tilting a base boom 12 within the range I of the right side in Fig., and the second jack 20 takes charge of the action of tilting the base boom 12 within the range II of the left side in the Fig. 2. Such movements of the base boom 12 serve to deliver and displace the second boom 13 having a knoblike connection on its tip in all the direction of the wheel body. The second boom 13 is moved back by folding it on the base boom 12 side by using a rising and falling cylinder 21, and the working arm device is housed into the housing portion of the wheel body within the maximum locus circle of the mounting structure.
COPYRIGHT: (C)1981,JPO&Japio
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4952980A JPS56150235A (en) | 1980-04-17 | 1980-04-17 | Oil-pressure excavator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4952980A JPS56150235A (en) | 1980-04-17 | 1980-04-17 | Oil-pressure excavator |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS56150235A true JPS56150235A (en) | 1981-11-20 |
| JPS6261738B2 JPS6261738B2 (en) | 1987-12-23 |
Family
ID=12833672
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP4952980A Granted JPS56150235A (en) | 1980-04-17 | 1980-04-17 | Oil-pressure excavator |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS56150235A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4502269A (en) * | 1982-09-10 | 1985-03-05 | Cartner Jack O | Hydraulic mower head orienting apparatus for boom mowers |
| US4506464A (en) * | 1982-09-10 | 1985-03-26 | Cartner Jack O | Hydraulic breakaway system for mobile cutting apparatus |
| US5266001A (en) * | 1987-11-26 | 1993-11-30 | Kabushiki Kaisha Komatsu Seisakusho | Working machine for construction vehicles and method of operating the same |
| US7698838B1 (en) * | 2005-11-09 | 2010-04-20 | Strayhorn David W | Hoe equipped excavator having increased range |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS50137807U (en) * | 1974-04-30 | 1975-11-13 |
-
1980
- 1980-04-17 JP JP4952980A patent/JPS56150235A/en active Granted
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS50137807U (en) * | 1974-04-30 | 1975-11-13 |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4502269A (en) * | 1982-09-10 | 1985-03-05 | Cartner Jack O | Hydraulic mower head orienting apparatus for boom mowers |
| US4506464A (en) * | 1982-09-10 | 1985-03-26 | Cartner Jack O | Hydraulic breakaway system for mobile cutting apparatus |
| US5266001A (en) * | 1987-11-26 | 1993-11-30 | Kabushiki Kaisha Komatsu Seisakusho | Working machine for construction vehicles and method of operating the same |
| US7698838B1 (en) * | 2005-11-09 | 2010-04-20 | Strayhorn David W | Hoe equipped excavator having increased range |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS6261738B2 (en) | 1987-12-23 |
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