JPH0419035Y2 - - Google Patents
Info
- Publication number
- JPH0419035Y2 JPH0419035Y2 JP1986186214U JP18621486U JPH0419035Y2 JP H0419035 Y2 JPH0419035 Y2 JP H0419035Y2 JP 1986186214 U JP1986186214 U JP 1986186214U JP 18621486 U JP18621486 U JP 18621486U JP H0419035 Y2 JPH0419035 Y2 JP H0419035Y2
- Authority
- JP
- Japan
- Prior art keywords
- boom
- hydraulic cylinder
- base
- steady
- pivoted
- 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
- 238000003466 welding Methods 0.000 description 7
- 230000008602 contraction Effects 0.000 description 6
- 239000003921 oil Substances 0.000 description 6
- 230000000694 effects Effects 0.000 description 3
- 238000007599 discharging Methods 0.000 description 2
- 239000010720 hydraulic oil Substances 0.000 description 2
- 238000013016 damping Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000000284 resting effect Effects 0.000 description 1
- 230000000087 stabilizing effect Effects 0.000 description 1
- 239000000725 suspension Substances 0.000 description 1
Landscapes
- Jib Cranes (AREA)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP1986186214U JPH0419035Y2 (US20030157376A1-20030821-M00001.png) | 1986-12-04 | 1986-12-04 |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP1986186214U JPH0419035Y2 (US20030157376A1-20030821-M00001.png) | 1986-12-04 | 1986-12-04 |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS6393391U JPS6393391U (US20030157376A1-20030821-M00001.png) | 1988-06-16 |
JPH0419035Y2 true JPH0419035Y2 (US20030157376A1-20030821-M00001.png) | 1992-04-28 |
Family
ID=31135567
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP1986186214U Expired JPH0419035Y2 (US20030157376A1-20030821-M00001.png) | 1986-12-04 | 1986-12-04 |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPH0419035Y2 (US20030157376A1-20030821-M00001.png) |
Family Cites Families (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS606791U (ja) * | 1983-06-23 | 1985-01-18 | 極東開発工業株式会社 | ガイド部材を有する3段以上の伸縮ブ−ム装置 |
-
1986
- 1986-12-04 JP JP1986186214U patent/JPH0419035Y2/ja not_active Expired
Also Published As
Publication number | Publication date |
---|---|
JPS6393391U (US20030157376A1-20030821-M00001.png) | 1988-06-16 |
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