JPH0315723Y2 - - Google Patents
Info
- Publication number
- JPH0315723Y2 JPH0315723Y2 JP7181784U JP7181784U JPH0315723Y2 JP H0315723 Y2 JPH0315723 Y2 JP H0315723Y2 JP 7181784 U JP7181784 U JP 7181784U JP 7181784 U JP7181784 U JP 7181784U JP H0315723 Y2 JPH0315723 Y2 JP H0315723Y2
- Authority
- JP
- Japan
- Prior art keywords
- inner tube
- outer tube
- tube
- steel pipe
- protrusions
- 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
- 229910000831 Steel Inorganic materials 0.000 claims description 10
- 239000010959 steel Substances 0.000 claims description 10
- 230000002093 peripheral effect Effects 0.000 claims 1
- 238000003780 insertion Methods 0.000 description 4
- 230000037431 insertion Effects 0.000 description 4
- 238000009434 installation Methods 0.000 description 2
- 238000010276 construction Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000002689 soil Substances 0.000 description 1
Landscapes
- Forms Removed On Construction Sites Or Auxiliary Members Thereof (AREA)
- Mutual Connection Of Rods And Tubes (AREA)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP7181784U JPS60184949U (ja) | 1984-05-18 | 1984-05-18 | 伸縮自在な鋼管柱 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP7181784U JPS60184949U (ja) | 1984-05-18 | 1984-05-18 | 伸縮自在な鋼管柱 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS60184949U JPS60184949U (ja) | 1985-12-07 |
| JPH0315723Y2 true JPH0315723Y2 (en]) | 1991-04-05 |
Family
ID=30609646
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP7181784U Granted JPS60184949U (ja) | 1984-05-18 | 1984-05-18 | 伸縮自在な鋼管柱 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS60184949U (en]) |
-
1984
- 1984-05-18 JP JP7181784U patent/JPS60184949U/ja active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS60184949U (ja) | 1985-12-07 |
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