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    • 1. 发明授权
    • Cutting tool
    • 切割用具
    • US5620284A
    • 1997-04-15
    • US545605
    • 1996-01-04
    • Yoshihisa UedaHiroshi ShimomuraShouji TakiguchiAkira Kanaboshi
    • Yoshihisa UedaHiroshi ShimomuraShouji TakiguchiAkira Kanaboshi
    • B23B51/10B23C3/05B23B51/00
    • B23B51/106B23C3/055Y10T408/5587Y10T408/85Y10T408/8588
    • In a cutting tool optimally used for working a valve hole in a cylinder head of an engine, a U-shaped groove (11) having a U-shaped cross section is formed to extend along a generatrix of a substantially conic tool main body (1), and a slider (160 carrying a cutting tip (5A) is slidably fitted in the U-shaped groove (11). A spacer (12) formed with a serration groove (12a) is detachably mounted between a wall surface (11a) of the U-shaped groove (11) and the slider (16). The slider (16) is formed on its side surface with a serration groove (16a) which engages the serration groove (12a). The slider (16) is biased toward the wall surface (11a) with an elastic force by a biasing means (15) which is provided at another wall surface (11b) of the U-shaped groove (11) and includes a pressing pin (17), a disk spring (18) and a set screw (19). Therefore, abrasion and deformation can be easily coped with by replacing the spacer (12), and the shakiness of the slider (16) can be suppressed, thereby extending the life of the tool and reducing the labor for maintenance.
    • PCT No.PCT / JP95 / 00355 Sec。 371日期1996年1月4日 102(e)日期1996年1月4日PCT 1995年3月6日PCT公布。 公开号WO95 / 24287 日期1995年9月14日在最适用于在发动机气缸盖中工作阀孔的切削工具中,形成具有U形横截面的U形槽(11),沿着基本上圆锥形的母线 工具主体(1)和滑动件(160),可滑动地装配在U形槽(11)中,形成有锯齿槽(12a)的间隔件(12)可拆卸地安装在 U形槽(11)的壁面(11a)和滑块(16),滑块(16)的侧面形成有与锯齿槽(12a)接合的锯齿槽(16a) (16)通过设置在所述U形槽(11)的另一个壁面(11b)上的施力装置(15)以弹性力向所述壁表面(11a)偏压,并包括压销(17) ,盘簧(18)和固定螺钉(19),因此通过更换间隔件(12)可以容易地应对磨损变形,滑块(16)的晃动可以是s 因此延长了工具的使用寿命,减少了维护人员的劳动。