JPS63171496U - - Google Patents
Info
- Publication number
- JPS63171496U JPS63171496U JP6270687U JP6270687U JPS63171496U JP S63171496 U JPS63171496 U JP S63171496U JP 6270687 U JP6270687 U JP 6270687U JP 6270687 U JP6270687 U JP 6270687U JP S63171496 U JPS63171496 U JP S63171496U
- Authority
- JP
- Japan
- Prior art keywords
- roller cutter
- cutter
- rotation detector
- shield tunneling
- detection device
- 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
- 230000005641 tunneling Effects 0.000 claims description 5
- 238000001514 detection method Methods 0.000 claims description 3
- 238000010586 diagram Methods 0.000 description 2
- 239000010953 base metal Substances 0.000 description 1
Landscapes
- Excavating Of Shafts Or Tunnels (AREA)
- Length Measuring Devices With Unspecified Measuring Means (AREA)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP6270687U JPH0417675Y2 (en]) | 1987-04-27 | 1987-04-27 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP6270687U JPH0417675Y2 (en]) | 1987-04-27 | 1987-04-27 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS63171496U true JPS63171496U (en]) | 1988-11-08 |
| JPH0417675Y2 JPH0417675Y2 (en]) | 1992-04-20 |
Family
ID=30897232
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP6270687U Expired JPH0417675Y2 (en]) | 1987-04-27 | 1987-04-27 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0417675Y2 (en]) |
-
1987
- 1987-04-27 JP JP6270687U patent/JPH0417675Y2/ja not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0417675Y2 (en]) | 1992-04-20 |