发明名称 |
Drill bit |
摘要 |
A drill bit is formed of an insertion end part (1) and carrier part (2) containing drilling cutter members (8). The insertion end part (1) and the carrier part (2) are joined together by a threaded connection. The two parts are secured by a radially flexible spring washer (7) for preventing an unintended detachment of the two parts.
|
申请公布号 |
US5655613(A) |
申请公布日期 |
1997.08.12 |
申请号 |
US19950544515 |
申请日期 |
1995.10.18 |
申请人 |
HILTI AKTIENGESELLSCHAFT |
发明人 |
LAUERMANN, WERNER;GEIGER, MARKUS;SPANGENBERG, ROLF |
分类号 |
B23B51/00;B23B51/04;B23B51/12;B28D1/14;(IPC1-7):B28D1/14 |
主分类号 |
B23B51/00 |
代理机构 |
|
代理人 |
|
主权项 |
|
地址 |
|