JPS6346555Y2 - - Google Patents
Info
- Publication number
- JPS6346555Y2 JPS6346555Y2 JP18884284U JP18884284U JPS6346555Y2 JP S6346555 Y2 JPS6346555 Y2 JP S6346555Y2 JP 18884284 U JP18884284 U JP 18884284U JP 18884284 U JP18884284 U JP 18884284U JP S6346555 Y2 JPS6346555 Y2 JP S6346555Y2
- Authority
- JP
- Japan
- Prior art keywords
- shaft
- holding member
- excavator
- annular holding
- arm
- 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
- 239000012530 fluid Substances 0.000 claims description 22
- 238000005553 drilling Methods 0.000 claims description 4
- 238000003466 welding Methods 0.000 claims 1
- 230000002093 peripheral effect Effects 0.000 description 12
- 238000009412 basement excavation Methods 0.000 description 7
- 230000000694 effects Effects 0.000 description 2
- 238000009423 ventilation Methods 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 1
- 230000008602 contraction Effects 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 230000001788 irregular Effects 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
- 239000002689 soil Substances 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 239000000725 suspension Substances 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
Landscapes
- Excavating Of Shafts Or Tunnels (AREA)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP18884284U JPS6346555Y2 (en, 2012) | 1984-12-14 | 1984-12-14 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP18884284U JPS6346555Y2 (en, 2012) | 1984-12-14 | 1984-12-14 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS61106596U JPS61106596U (en, 2012) | 1986-07-07 |
| JPS6346555Y2 true JPS6346555Y2 (en, 2012) | 1988-12-02 |
Family
ID=30746305
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP18884284U Expired JPS6346555Y2 (en, 2012) | 1984-12-14 | 1984-12-14 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6346555Y2 (en, 2012) |
-
1984
- 1984-12-14 JP JP18884284U patent/JPS6346555Y2/ja not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| JPS61106596U (en, 2012) | 1986-07-07 |
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