JPH0540128Y2 - - Google Patents
Info
- Publication number
- JPH0540128Y2 JPH0540128Y2 JP1987113151U JP11315187U JPH0540128Y2 JP H0540128 Y2 JPH0540128 Y2 JP H0540128Y2 JP 1987113151 U JP1987113151 U JP 1987113151U JP 11315187 U JP11315187 U JP 11315187U JP H0540128 Y2 JPH0540128 Y2 JP H0540128Y2
- Authority
- JP
- Japan
- Prior art keywords
- arm
- boom
- cylinder
- gas
- web
- 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 - Lifetime
Links
- 238000010276 construction Methods 0.000 claims description 9
- 239000007789 gas Substances 0.000 description 17
- SWQJXJOGLNCZEY-UHFFFAOYSA-N helium atom Chemical compound [He] SWQJXJOGLNCZEY-UHFFFAOYSA-N 0.000 description 6
- 239000001307 helium Substances 0.000 description 5
- 229910052734 helium Inorganic materials 0.000 description 5
- 238000007789 sealing Methods 0.000 description 4
- 238000003466 welding Methods 0.000 description 4
- 230000000694 effects Effects 0.000 description 3
- 238000010168 coupling process Methods 0.000 description 2
- 238000005859 coupling reaction Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 239000004576 sand Substances 0.000 description 2
- 238000009412 basement excavation Methods 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000001151 other effect Effects 0.000 description 1
Landscapes
- Jib Cranes (AREA)
- Component Parts Of Construction Machinery (AREA)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1987113151U JPH0540128Y2 (cs) | 1987-07-23 | 1987-07-23 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1987113151U JPH0540128Y2 (cs) | 1987-07-23 | 1987-07-23 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS6419658U JPS6419658U (cs) | 1989-01-31 |
| JPH0540128Y2 true JPH0540128Y2 (cs) | 1993-10-12 |
Family
ID=31352734
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1987113151U Expired - Lifetime JPH0540128Y2 (cs) | 1987-07-23 | 1987-07-23 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0540128Y2 (cs) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5217698U (cs) * | 1975-07-26 | 1977-02-08 |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5810773Y2 (ja) * | 1977-10-29 | 1983-02-28 | 株式会社加藤製作所 | パワ−シヨベル |
-
1987
- 1987-07-23 JP JP1987113151U patent/JPH0540128Y2/ja not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| JPS6419658U (cs) | 1989-01-31 |
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