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    Dental cutting tool holder
    1.
    发明授权
    Dental cutting tool holder 失效
    牙科刀具架

    公开(公告)号：US5591028A

    公开(公告)日：1997-01-07

    申请号：US364545

    申请日：1994-12-27

    申请人： Setsuo Fujiki ,  Shozo Nakayama ,  Haruo Ogawa ,  Makoto Numakawa ,  Minoru Hayashida ,  Suezo Inoue ,  Yasuhiro Higashida

    发明人： Setsuo Fujiki ,  Shozo Nakayama ,  Haruo Ogawa ,  Makoto Numakawa ,  Minoru Hayashida ,  Suezo Inoue ,  Yasuhiro Higashida

    IPC分类号： A61C1/14 ,  B23B31/20

    CPC分类号： A61C1/144 ,  A61C1/141 ,  A61C1/142 ,  B23B31/202 ,  B23B2231/204 ,  B23B2231/2094

    摘要： A dental cutting tool holder which prevents the occurrence of sliding between the cutting tool and collet chuck at high-speed rotation, and prevents dislocation of the cutting tool securely, comprising a collet chuck into which a dental cutting tool is inserted detachably, and which comprises a right cylindrical section and a plurality of arc-section segments which are contiguous to the cylindrical section and divided in a circumferential direction; a rotor into which the collet chuck is inserted, and which is driven for rotation around the axis of rotation together with the collet chuck; and a clamping member which intervenes between the collet chuck and the rotor to press the respective segments inward in a radial direction by its displacement toward one end of the axis relative to the collet chuck while releasing the inward, radially pressed condition by its displacement toward the other end of the axis. The respective segments are formed with recess sections and an axially extending protrusion section.

    摘要翻译： 一种用于防止在高速旋转时在切割工具和夹头卡盘之间发生滑动并且防止切割工具发生错位的牙科切割工具夹具，其包括可拆卸地插入牙切割工具的夹头卡盘，并且包括 右圆柱形部分和多个弧形段，其与圆柱形部分相邻并沿圆周方向分隔; 夹头卡盘插入其中的转子，并且与夹头卡盘一起被驱动以围绕旋转轴线旋转; 夹紧构件，其插入在夹头卡盘和转子之间，通过向轴向相对于夹头卡盘的一端向径向向内挤压各个区段，同时通过向内侧朝向 轴的另一端。 各段形成有凹部和轴向延伸的突出部。

    SEALED COLLET
    3.
    发明申请
    SEALED COLLET 审中-公开

    公开(公告)号：US20180347701A1

    公开(公告)日：2018-12-06

    申请号：US15614401

    申请日：2017-06-05

    申请人： Kennametal Inc.

    发明人： Alan J. Bookheimer ,  Ruy Frota de Souza Filho

    IPC分类号： F16J15/14 ,  B23B31/20 ,  B23Q1/00

    CPC分类号： B23B31/202 ,  B23B2231/2008 ,  B23B2231/2075 ,  B23B2231/2091 ,  B23B2231/2094 ,  B23B2231/2097 ,  B23B2231/24 ,  B23B2250/12 ,  Y10T279/17111 ,  Y10T279/17299 ,  Y10T279/17435 ,  Y10T279/17538

    摘要： A collet includes an axially rearward end and an axially forward end; a nose portion; a body portion having an outer surface and an inner surface for engaging a shank of a tool; a plurality of slots extending from the inner surface to the outer surface; and a plurality of coolant channels disposed within the collet between the plurality of longitudinally extending slots and extending entirely from the axially rearward end to the axially forward end of the collet. The slots include a first slot extending from the axial forward end to within an intermediary zone, a second slot extending from the axial rearward end to at least the tool holder engagement zone such that the second slot does not intersect the first slot, and a third slot from within the tool engagement zone to within the intermediary zone such that the third slot circumferentially overlaps the first and second slots.