JPS6180884U - - Google Patents
Info
- Publication number
- JPS6180884U JPS6180884U JP16636984U JP16636984U JPS6180884U JP S6180884 U JPS6180884 U JP S6180884U JP 16636984 U JP16636984 U JP 16636984U JP 16636984 U JP16636984 U JP 16636984U JP S6180884 U JPS6180884 U JP S6180884U
- Authority
- JP
- Japan
- Prior art keywords
- bit
- rotating
- rotary bit
- excavates
- rollers
- 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.)
- Pending
Links
- 239000000919 ceramic Substances 0.000 claims 1
- 239000002184 metal Substances 0.000 claims 1
Landscapes
- Earth Drilling (AREA)
Description
第１図は本考案にかかる回転式ビツトの１例と
してのローラビツトの一部断面図、第２図はその
側面図、第３図は同じくトリコーンビツトの一部
断面図、および第４図はその要部拡大断面図であ
る。
１……ローラビツト、２……ビツト本体、３…
…支持軸、４……支承部、１７……ボール、１８
，１８′……ローラ、２５……トリコーンビツト
、２７……コーン。
FIG. 1 is a partial sectional view of a roller bit as an example of a rotary bit according to the present invention, FIG. 2 is a side view thereof, FIG. 3 is a partial sectional view of a tricone bit, and FIG. It is an enlarged sectional view of the main part. 1...Roller bit, 2...Bit body, 3...
...Support shaft, 4...Support part, 17...Ball, 18
, 18'...roller, 25...tricone bit, 27...cone.
Claims (1)
ら掘削を行なう回転式ビツトであつて、該ビツト
の回転部が硬質のセラミツクスのボールもしくは
ローラによつて回転自在に支承されていることを
特徴とする土木工事用回転式ビツト。 A rotary bit that has a blade made of hard metal and excavates while rotating, and the rotating part of the bit is rotatably supported by hard ceramic balls or rollers. Characteristic rotary bit for civil engineering work.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP16636984U JPS6180884U (en) | 1984-10-31 | 1984-10-31 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP16636984U JPS6180884U (en) | 1984-10-31 | 1984-10-31 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS6180884U true JPS6180884U (en) | 1986-05-29 |
Family
ID=30724189
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP16636984U Pending JPS6180884U (en) | 1984-10-31 | 1984-10-31 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6180884U (en) |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS4812815U (en) * | 1971-06-21 | 1973-02-13 | ||
| JPS49111802A (en) * | 1973-02-07 | 1974-10-24 |
-
1984
- 1984-10-31 JP JP16636984U patent/JPS6180884U/ja active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS4812815U (en) * | 1971-06-21 | 1973-02-13 | ||
| JPS49111802A (en) * | 1973-02-07 | 1974-10-24 |