JPH0417675Y2 - - Google Patents
Info
- Publication number
- JPH0417675Y2 JPH0417675Y2 JP6270687U JP6270687U JPH0417675Y2 JP H0417675 Y2 JPH0417675 Y2 JP H0417675Y2 JP 6270687 U JP6270687 U JP 6270687U JP 6270687 U JP6270687 U JP 6270687U JP H0417675 Y2 JPH0417675 Y2 JP H0417675Y2
- Authority
- JP
- Japan
- Prior art keywords
- roller cutter
- cutter
- rotation
- roller
- wear
- 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
- 238000001514 detection method Methods 0.000 claims description 6
- 230000005641 tunneling Effects 0.000 claims description 6
- 239000010953 base metal Substances 0.000 description 7
- 238000009412 basement excavation Methods 0.000 description 6
- 239000004575 stone Substances 0.000 description 4
- 239000002689 soil Substances 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 239000000956 alloy Substances 0.000 description 1
- 229910045601 alloy Inorganic materials 0.000 description 1
- 230000004397 blinking Effects 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- UONOETXJSWQNOL-UHFFFAOYSA-N tungsten carbide Chemical compound [W+]#[C-] UONOETXJSWQNOL-UHFFFAOYSA-N 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 JPS63171496U (en]) | 1988-11-08 |
| JPH0417675Y2 true 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 |
|---|---|
| JPS63171496U (en]) | 1988-11-08 |
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