MOTION GUIDE DEVICE
    2.
    发明公开
    MOTION GUIDE DEVICE 有权
    运动指南设备

    公开(公告)号:EP1793135A1

    公开(公告)日:2007-06-06

    申请号:EP05780936.0

    申请日:2005-08-25

    申请人: THK CO., LTD.

    IPC分类号: F16C29/06

    CPC分类号: F16C29/0642 F16C29/0609

    摘要: The present invention provides a motion guide device having an improved scoop section structure which barely induces damage thereto when a moving member is moved at high speed. Balls (13) rolling in ball rolling grooves (11a) of a raceway rail (11) are scooped by a scoop section (22) of a moving block (12) for introduction into non-load ball return paths (17, 21). The scoop section (22) is formed into a shape of a Gothic arch groove for two-point contact with a ball (13) and in a cross-section perpendicular to a traveling direction of the ball (13), an angle (contact angle α) made between a line (L1) connecting a point (P) where the scoop section (22) contacts the ball (13) to a center (C) of the ball (13) and a line (L2) connecting the center (C) of the ball (13) to a bottom (22a) of the scoop section (22) of the Gothic arch groove is more than 30° and equal to or less than an angle (γ) made between a line (L3) connecting the center (C) of the ball (13) that rolls in the ball rolling grooves (11a) of the raceway member (11) to an edge (35) of the ball rolling groove (11a) in the raceway rail (11) and the line (L2) connecting the center (C) of the ball (13) to a bottom of the ball rolling groove (11a) in the raceway member (11).

    摘要翻译: 本发明提供一种运动引导装置,该运动引导装置具有改进的勺形截面结构,当运动构件高速移动时,其几乎不会对其造成损害。 在轨道导轨(11)的滚珠滚动槽(11a)中滚动的滚珠(13)被移动块(12)的勺形部分(22)铲住,以引入无负荷滚珠返回路径(17,21)。 勺部(22)形成为与球(13)两点接触的哥特式拱形槽的形状,并且在与球(13)的行进方向垂直的截面中,角度(接触角 (22)接触球(13)的点(P)与球(13)的中心(C)连接的线(L1)与连接球(13)的中心(C)的线(L2) (13)的底部(22a)与哥特弧形槽的勺部(22)的底部(22a)之间的角度(γ)大于或等于连接线(L3) 在轨道部件11的滚珠滚动槽11a中滚动到轨道
    导轨11的滚珠滚道槽11a的边缘35的滚珠13的中心C, 连接球(13)的中心(C)与滚道构件(11)中的滚珠滚道槽(11a)的底部的线(L2)。