基本信息:
- 专利标题： 드릴 비트
- 专利标题（英）：Drill bit
- 专利标题（中）：钻头
- 申请号：KR1020127019724 申请日：2011-04-19
- 公开(公告)号：KR1020120099788A 公开(公告)日：2012-09-11
- 发明人： 미야나가,마사아키
- 申请人： 가부시키 가이샤 미야나가
- 申请人地址： **** FUKUI, MIKI-SHI, HYOGO ***-**** JAPAN
- 专利权人： 가부시키 가이샤 미야나가
- 当前专利权人： 가부시키 가이샤 미야나가
- 当前专利权人地址： **** FUKUI, MIKI-SHI, HYOGO ***-**** JAPAN
- 代理人： 김영철; 김 순 영
- 优先权： JPJP-P-2010-117261 2010-05-21
- 国际申请： PCT/JP2011/002276 2011-04-19
- 国际公布： WO2011145270 2011-11-24
- 主分类号： B28D1/14
- IPC分类号： B28D1/14 ; B28D7/02 ; B23B51/02
Maintaining the exhaustion performance and an object of the invention to provide a drill bit with improved rigidity of the bit end to the bit shaft portion junction, and being disposed separately by three or more cutting edge portion circumferentially on the front end, formed on each cutting blade (3c) bit tip portion with a cutting edge form a junction ridgeline (L1) of which the slope (3s) and a clearance surface (3e) (3) and, in the group section of the bit tip end 3, a distal end surface (2F) to rotate integrally the deposited bit shaft portion drill with a 2-bit (1), and the bit shaft part (2), extending in a longitudinal direction and a dust extraction passage (4) tip is continuously provided to the bit shaft part leading end, and bit the distal end portion of the shaft portion (2), continuously installed in the dust extraction passage (4) so as to be perpendicular or substantially perpendicular to the dust extraction passage (4) and also so as to face the outer end (6t), the outer peripheral surface (1F) of the bit shaft part (2) the secondary dust extraction passage is formed with an opening (6), bit tip portion (3) is a base end (3b) is integrally chwichak on the top face of the bit shaft part (2).
公开/授权文献:
- KR101346400B1 드릴 비트 公开/授权日：2014-01-02
信息查询:
EspacenetIPC结构图谱:
| B | 作业；运输 |
| --B28 | 加工水泥、黏土或石料 |
| ----B28D | 加工石头或类似石头的材料 |
| ------B28D1/00 | 不包含在其他类目中的石头或类似石头的材料，例如砖、混凝土的加工；所用的机械、装置、工具 |
| --------B28D1/14 | .通过钻孔或打眼 |