发明名称 |
STÜTZUNTERLAGE FÜR EINEN BOHRER |
摘要 |
A drill includes support pads for supporting and guiding the drill in the drill hole. The support pads are formed as parallelepiped-shaped cemented carbide bodies which each have two wing-shaped protrusions on their longitudinal sides. In a corresponding way, the drill head of the drill includes recesses with two bulged parts on the long sides. This gives the support pad a determined axial position and strengthens the support pad at the weakening caused by the central hole. Further, the support pad can be turned half a revolution if one of its ends becomes damaged since the end spaces do not have to function as abutment surfaces. |
申请公布号 |
AT195682(T) |
申请公布日期 |
2000.09.15 |
申请号 |
AT19950932273T |
申请日期 |
1995.09.11 |
申请人 |
SANDVIK AKTIEBOLAG |
发明人 |
DANIELSSON, AKE;BLOMBERG, TORSTEN |
分类号 |
B23B51/04;B23B29/03;B23B51/00;(IPC1-7):B23B29/03 |
主分类号 |
B23B51/04 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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