发明公开
- 专利标题： Hole cutter
- 专利标题（中）： Hohlbohrer。
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申请号： EP92300173.9申请日： 1992-01-09
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公开(公告)号： EP0503753A1公开(公告)日： 1992-09-16
- 发明人: Cochran, Paul
- 申请人： GREENLEE TEXTRON INC.
- 申请人地址： 4455 Boeing Drive Rockford Illinois 61109 US
- 专利权人： GREENLEE TEXTRON INC.
- 当前专利权人： GREENLEE TEXTRON INC.
- 当前专利权人地址： 4455 Boeing Drive Rockford Illinois 61109 US
- 代理机构： Long, Edward Anthony
- 优先权： US670302 19910315
- 主分类号： B23B51/04
- IPC分类号： B23B51/04
摘要：
A rotary cutting device (20) for cutting holes in a workpiece and a method of making a rotary cutting device (20). The method includes machining a notch (42) across a face (72) of a generally cylindrical body (22). The body (22) has a longitudinally extending central axis (24) and a central bore (26) formed concentric therewith. Machining the notch (42) forms at least one generally arcuate protrusion (74) on the face (72) of the body (22). A slot (60) is formed through each of the protrusions (74) resulting in two teeth (38) being formed on either side of the slots (60). A cutting tooth (38) and a stabilizing tooth (40) are formed on each side of the mouth of each slot (60) formed in the body (22). The cutting tooth (38) removes material from a workpiece and the stabilizing tooth (40) limits the feed rate and prevents grabbing when a rotary motion is applied thereto.
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