发明公开
- 专利标题： Improvements in drilling machines
- 专利标题（中）： Bohrmaschinen。
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申请号： EP88309999.6申请日： 1988-10-25
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公开(公告)号： EP0314423A1公开(公告)日： 1989-05-03
- 发明人: Stych, Ralph
- 申请人： ROTABROACH LIMITED
- 申请人地址： Savile Street Sheffield S4 7UD GB
- 专利权人： ROTABROACH LIMITED
- 当前专利权人： ROTABROACH LIMITED
- 当前专利权人地址： Savile Street Sheffield S4 7UD GB
- 代理机构： Jones, Colin
- 优先权： GB8725087 19871027
- 主分类号： E01B31/06
- IPC分类号： E01B31/06
摘要：
A drilling machine for drilling fishplate holes in the end of a rail (10) for a railway or railroad track comprises an electric power drill (20) slidably mounted on a column (14) and supporting on its spindle arbor (58) an annular cutter (26). The column (14) is attached to a base (12) which is firmly clamped to the rail (10) by a clamping mechanism (16a). The latter comprises a replaceable former (30) attached to the base (12) and a clamping jaw (18a) on a lever (48). The latter is actuated by a worm mechanism (72, 74). The jaw (18a) is directly opposite the former (30) and in line with the drill spindle arbor (58). The drilling machine is lightweight and does not have any ground support.
公开/授权文献
- EP0314423B1 Improvements in drilling machines 公开/授权日：1991-08-07
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