发明名称 |
DRILL BIT WITH FASTENER-DRIVING COLLAR ASSEMBLY |
摘要 |
<p>Case 3397-00 DRILL BIT WITH FASTENER-DRIVING COLLAR ASSEMBLY A two piece hole-drilling and fastener-driving assembly consists of a three-sectioned drill bit and a three-sectioned drive collar. The drill bit has a fluted drilling section, a hexagonal driving section and a tapered section adapted to be received in a complementarily shape chuck of a rotary hammer drill. The drive collar has a first hexagonal portion which mates with the hexagonal drill bit section and Is driven thereby. A second tubular portion receives the drilling section when the hexagonal portions are engaged. A third portion includes a fastener-engaging recess. This portion may take the form of a removable socket and the collar provided with a spring-biased ball retainer to hold the socket thereon and a second such retainer to hold the collar on the drill bit. The drill bit is inserted in the rotary hammer chuck and a hole is drilled in the workpiece. The drive collar is then slipped over the drill bit and a self-tapping fastener driven into the just-drilled hole.</p> |
申请公布号 |
CA1141204(A) |
申请公布日期 |
1983.02.15 |
申请号 |
CA19800347034 |
申请日期 |
1980.03.05 |
申请人 |
ILLINOIS TOOL WORKS INC. |
发明人 |
ERNST, RICHARD J.;WILLIAMS, ELBERT E., JR. |
分类号 |
B23B45/00;B25B21/00;B25F3/00;(IPC1-7):B23B51/00 |
主分类号 |
B23B45/00 |
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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