JPH0560031B2 - - Google Patents
Info
- Publication number
- JPH0560031B2 JPH0560031B2 JP18402885A JP18402885A JPH0560031B2 JP H0560031 B2 JPH0560031 B2 JP H0560031B2 JP 18402885 A JP18402885 A JP 18402885A JP 18402885 A JP18402885 A JP 18402885A JP H0560031 B2 JPH0560031 B2 JP H0560031B2
- Authority
- JP
- Japan
- Prior art keywords
- rod
- sleeve
- swing arm
- recess
- crawler drill
- 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
- 238000005553 drilling Methods 0.000 description 7
- 125000006850 spacer group Chemical group 0.000 description 2
- 230000002159 abnormal effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
Landscapes
- Earth Drilling (AREA)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP18402885A JPS61211492A (ja) | 1985-08-23 | 1985-08-23 | クロ−ラドリルのロツド交換装置 |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP18402885A JPS61211492A (ja) | 1985-08-23 | 1985-08-23 | クロ−ラドリルのロツド交換装置 |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS61211492A JPS61211492A (ja) | 1986-09-19 |
JPH0560031B2 true JPH0560031B2 (fi) | 1993-09-01 |
Family
ID=16146086
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP18402885A Granted JPS61211492A (ja) | 1985-08-23 | 1985-08-23 | クロ−ラドリルのロツド交換装置 |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS61211492A (fi) |
-
1985
- 1985-08-23 JP JP18402885A patent/JPS61211492A/ja active Granted
Also Published As
Publication number | Publication date |
---|---|
JPS61211492A (ja) | 1986-09-19 |
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