JPH0340956Y2 - - Google Patents
Info
- Publication number
- JPH0340956Y2 JPH0340956Y2 JP14290787U JP14290787U JPH0340956Y2 JP H0340956 Y2 JPH0340956 Y2 JP H0340956Y2 JP 14290787 U JP14290787 U JP 14290787U JP 14290787 U JP14290787 U JP 14290787U JP H0340956 Y2 JPH0340956 Y2 JP H0340956Y2
- Authority
- JP
- Japan
- Prior art keywords
- chips
- base
- tip
- ring bit
- edge
- 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
- 238000009825 accumulation Methods 0.000 description 3
- 239000000843 powder Substances 0.000 description 2
- 238000009412 basement excavation Methods 0.000 description 1
- 210000003029 clitoris Anatomy 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 230000003313 weakening effect Effects 0.000 description 1
Landscapes
- Earth Drilling (AREA)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP14290787U JPH0340956Y2 (US20100223739A1-20100909-C00005.png) | 1987-09-17 | 1987-09-17 |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP14290787U JPH0340956Y2 (US20100223739A1-20100909-C00005.png) | 1987-09-17 | 1987-09-17 |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS6447892U JPS6447892U (US20100223739A1-20100909-C00005.png) | 1989-03-24 |
JPH0340956Y2 true JPH0340956Y2 (US20100223739A1-20100909-C00005.png) | 1991-08-28 |
Family
ID=31409250
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP14290787U Expired JPH0340956Y2 (US20100223739A1-20100909-C00005.png) | 1987-09-17 | 1987-09-17 |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPH0340956Y2 (US20100223739A1-20100909-C00005.png) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2525225Y2 (ja) * | 1990-04-24 | 1997-02-05 | 鉱研工業株式会社 | リングビット |
-
1987
- 1987-09-17 JP JP14290787U patent/JPH0340956Y2/ja not_active Expired
Also Published As
Publication number | Publication date |
---|---|
JPS6447892U (US20100223739A1-20100909-C00005.png) | 1989-03-24 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
CN103945968B (zh) | 切削刀片及可转位刀片式切削工具 | |
US4951761A (en) | Rock drill | |
JP3302359B2 (ja) | ドリル工具 | |
KR101840898B1 (ko) | 점변식 웨지 또는 클리어런스 각도를 갖는 절삭 인서트 및 이러한 절삭 인서트를 이용하는 공구홀더 | |
JPH05280273A (ja) | ラウンドピックおよび掘削工具 | |
US5269387A (en) | Insert for mine roof tool bit | |
RU2007115403A (ru) | Долото для вращательного бурения, имеющее твердосплавную вставку с выемкой | |
JP4664911B2 (ja) | 穴あけ工具および/またははつり工具 | |
JPH0340956Y2 (US20100223739A1-20100909-C00005.png) | ||
US3400617A (en) | Drill bit tip | |
JPS6334003A (ja) | スロ−アウエイチツプ | |
JPS60161B2 (ja) | スロ−アウエイ工具 | |
CN113217006A (zh) | 一种锥形刀盘及掘进机 | |
JPH0666910U (ja) | エンドミル | |
CN107073605A (zh) | 刀具主体、刀片支承机构以及切削刀具 | |
RU2670306C1 (ru) | Асимметричный резец для бурильного инструмента | |
US4225190A (en) | Mining drum with cutting and shearing bits on conical ring | |
JP2001164567A (ja) | 鋼管杭 | |
JP2602044Y2 (ja) | リングビット | |
US4596295A (en) | Roller cutter with a tilted journal | |
JPH0325856Y2 (US20100223739A1-20100909-C00005.png) | ||
JP3764147B2 (ja) | 回転掘削ヘッド | |
JPS60152798A (ja) | シールド掘進装置 | |
JPS5931819Y2 (ja) | せん孔用ビツト | |
JPS63125797A (ja) | 掘削工具 |