公开(公告)号：US06206617B1

公开(公告)日：2001-03-27

申请号：US09410047

申请日：1999-10-01

申请人： Tetsuhiro Kawazoe ,  Mitsuhiko Tomioka ,  Tetsuro Nakanose ,  Motoshi Nakamura ,  Hiroyasu Sakai ,  Toshihiro Yasuda

发明人： Tetsuhiro Kawazoe ,  Mitsuhiko Tomioka ,  Tetsuro Nakanose ,  Motoshi Nakamura ,  Hiroyasu Sakai ,  Toshihiro Yasuda

IPC分类号： B23B5100

CPC分类号： B23D77/02 ,  B23D2277/60 ,  Y10T408/03 ,  Y10T408/45 ,  Y10T408/5586 ,  Y10T408/78 ,  Y10T408/81 ,  Y10T408/89 ,  Y10T408/909

摘要： A reamer including; a generally cylindrical cutter body having (a) a flute formed in an outer circumferential surface of the cutter body and extending from an axially distal end of the cutter body toward an axially proximal end of the cutter body, (b) a cutting blade portion positioned at a longitudinally distal end of a downstream one of widthwise opposite edges of the flute as viewed in a rotating direction of the reamer, and (c) a guide portion having a guide surface which is circumferentially adjacent to the flute and which circumferentially extends over at least 240° about an axis of the cutter body. The guide surface is a part of the outer circumferential surface of the cutter body.

摘要翻译： 铰刀包括 一种大致圆柱形的切割器主体，具有（a）形成在切割器主体的外圆周表面上并从切割器主体的轴向远端延伸到切割器主体的轴向近端的凹槽，（b）定位的切割刀片部分 在所述扩孔器的旋转方向上观察时，在所述凹槽的宽度方向相对的边缘的下游一个的纵向远端处，以及（c）引导部分，其具有周向地邻近所述凹槽的引导表面， 相对于切割器主体的轴线至少240°。 导向面是刀体的外周面的一部分。

公开(公告)号：US06568883B1

公开(公告)日：2003-05-27

申请号：US09647740

申请日：2000-10-04

申请人： Akio Fukui ,  Atsushi Iwahori ,  Tetsuro Nakanose ,  Kunitoshi Miyazaki ,  Motoshi Nakamura

发明人： Akio Fukui ,  Atsushi Iwahori ,  Tetsuro Nakanose ,  Kunitoshi Miyazaki ,  Motoshi Nakamura

IPC分类号： B23B5102

CPC分类号： B23B29/046 ,  B23B31/36 ,  B23D77/00 ,  Y10T408/03 ,  Y10T408/8598 ,  Y10T408/9095 ,  Y10T408/95

摘要： A reamer includes: (a) an axially-distal-end small-diameter portion; (b) a guide portion which is axially adjacent to the small-diameter portion; (c) at least one flute which is formed in an outer circumferential surface of the reamer and which extends from the axially distal end of the reamer toward the axially distal end of the reamer; and (d) at least one land surface which is circumferentially adjacent to the flute. The land has a cutting blade portion formed therein in the axially-distal-end small-diameter portion. A first radial distance from an axis of the reamer to a radically outer end of the cutting blade portion is larger than a second radial distance from the axis to the land surface in the axially-distal-end small-diameter portion. The first radial distance is smaller than a third radial distance from the axis to the land surface in the guide portion.

摘要翻译： 铰刀包括：（a）轴向前端小直径部分; （b）与所述小直径部分轴向相邻的引导部分; （c）至少一个槽，其形成在所述铰刀的外周表面中并且从所述铰刀的轴向远端朝向所述铰刀的轴向远端延伸; 和（d）至少一个与所述凹槽相邻的陆面。 该脊部在轴向前端小直径部分中形成有切割刀片部分。 从铰刀的轴线到切割刀片部分的根本外端的第一径向距离大于在轴向前端小直径部分中从轴线到陆地表面的第二径向距离。 第一径向距离小于在引导部分中从轴线到陆地表面的第三径向距离。