发明名称 |
Holder for self-drilling dowels |
摘要 |
A holder for a self-drilling dowel has a frusto-conically shaped bore for holding the locking-in cone on the dowel. The surface of the bore has three uniformly angularly spaced rounded recesses so that three relatively narrow strips of the surface provide contact with the locking-in cone.
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申请公布号 |
US4134597(A) |
申请公布日期 |
1979.01.16 |
申请号 |
US19770808727 |
申请日期 |
1977.06.21 |
申请人 |
HILTI AKTIENGESELLSCHAFT |
发明人 |
UDERT, KARL-ERNST;ENTNER, JOSEF |
分类号 |
B25D17/00;(IPC1-7):B23B31/06;B23B31/44 |
主分类号 |
B25D17/00 |
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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