发明名称 |
Non-core type bit, non-core drill apparatus, and method of supplying cooling water thereto |
摘要 |
<p>A cutting tip 14 is secured to the distal end of the shank 12 of a non-core type bit 16 that is designed to bore holes. The shank 12 has a water-supplying passage 22 and a water-discharging passage 26. The water-supplying passage 22 is configured to supply cooling water to the tip 14. The water-discharging passage 26 is configured to discharge the cooling water from a hole 24 being bored by the tip 14. A swivel 32 has a water-supplying port 28 that is connected to a cooling-water source 54. The cooling water flows from the cooling-water source 54 to the bit 14 through the water-supplying passage 22. A suction force applied by a cooling-water discharging means 56 compels the cooling water out of the hole 24. The cooling water is thereby discharged through the water-discharging passage 26.</p> |
申请公布号 |
EP1525937(A2) |
申请公布日期 |
2005.04.27 |
申请号 |
EP20040256186 |
申请日期 |
2004.10.06 |
申请人 |
ISHIHARA KIKAI KOGYO CO. LTD. |
发明人 |
ISHIHARA, MASAMITSU |
分类号 |
B23Q11/00;B23B51/04;B23B51/06;B23Q11/10;B28D1/14;(IPC1-7):B23B51/06 |
主分类号 |
B23Q11/00 |
代理机构 |
|
代理人 |
|
主权项 |
|
地址 |
|