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    • 2. 发明专利
    • Ring with cutting edge
    • 环形切割边缘
    • JP2009119591A
    • 2009-06-04
    • JP2007299384
    • 2007-11-19
    • Mitsubishi Materials Corp三菱マテリアル株式会社
    • KAWADE YASUHIKO
    • B23B51/08
    • B23B51/08B23B51/108Y10S408/713Y10T408/62Y10T408/8725Y10T408/906Y10T408/90993
    • PROBLEM TO BE SOLVED: To easily attach a ring with a cutting edge detachably fixed to a drilling tool and working a peripheral edge of a hole opened by the drilling tool, to the drilling tool. SOLUTION: The ring with the cutting edge 1 is constituted by a ring portion 10, in which an insertion hole 11 allowing a drilling tool 40 to be inserted in the direction of an axis O thereof and having a circular shape in plan view, is formed. The ring portion 10 has a portion in the peripheral direction of the inner peripheral surface 10C provided with a recess 12 formed radially outward from the inner peripheral surface 10C. A circular-arc arm portion 13, which extends in the peripheral direction from one peripheral end of the inner peripheral surface toward the other peripheral end thereof, in the opening edge of the recess 12 facing the inner peripheral surface 10C and is elastically deformable in the radial direction, is formed integrally in the ring portion 10, and the circular-arc arm portion 13 is pressed radially inward by a fastening screw 15 threadedly attached to a threaded attachment hole 14 which goes through the ring portion 10 in the radial direction, and is opened to a bottom surface of the recess 12. COPYRIGHT: (C)2009,JPO&INPIT
    • 要解决的问题:为了容易地将具有可拆卸地固定到钻孔工具上的切割刃的环和将由钻孔工具打开的孔的周边边缘加工到钻孔工具。 解决方案:具有切削刃1的环由环形部分10构成,其中允许钻孔工具40沿其轴线O的方向插入并且在平面图中具有圆形形状的插入孔11 , 形成了。 环部10在内周面10C的圆周方向上具有从内周面10C向径向外侧形成的凹部12的部分。 一圆弧臂部分13,它在圆周方向上从内圆周表面的另一个外周端延伸到凹槽12的面向内周表面10C的开口边缘中,并可在 半径方向一体地形成在环部10中,并且圆弧臂部13通过紧固螺钉15径向向内按压,该紧固螺钉15螺纹地附接到沿着径向穿过环部10的螺纹安装孔14,以及 被打开到凹部12的底表面。版权所有(C)2009,JPO&INPIT