TREPANNING TOOL FOR DRILLING MACHINES
    1.
    发明申请
    TREPANNING TOOL FOR DRILLING MACHINES 审中-公开
    钻探机械工具

    公开(公告)号:WO1994027773A1

    公开(公告)日:1994-12-08

    申请号:PCT/FI1994000197

    申请日:1994-05-17

    CPC classification number: B23B51/05 B05B16/95

    Abstract: According to the invention, at least two cutting blades (3a, 3b) are attached to a body (4) on the opposite sides of a centre bit (2) at substantially an equal distance from the centre bit (2). The cutting point (6a) of the first blade (3a) is on the outer edge of the blade (3a), and the cutting point (6b) of the second cutting blade (3b) is on the inner edge of the cutting blade (3b) whereby, when a hole is drilled, a wide cut is formed in the object drilled by the action of the cutting blades (3a, 3b).

    Abstract translation: 根据本发明,至少两个切割刀片(3a,3b)以与中心钻头(2)基本相等的距离安装在位于中心钻头(2)的相对侧上的主体(4)上。 第一叶片(3a)的切割点(6a)位于叶片(3a)的外边缘上,第二切割刀片(3b)的切割点(6b)位于切割刀片 3b),由此,当钻孔时,通过切割刀片(3a,3b)的作用钻出的物体中形成宽切口。

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