Method for detecting a bit jam condition using a freely rotatable inertial mass
    4.
    发明授权
    Method for detecting a bit jam condition using a freely rotatable inertial mass 有权
    使用可自由旋转的惯性质量块检测咬住状态的方法

    公开(公告)号:US07395871B2

    公开(公告)日:2008-07-08

    申请号:US10829994

    申请日:2004-04-22

    IPC分类号: B23B1/00 B23B45/02

    CPC分类号: B25F5/00 Y10T408/14

    摘要: An improved method is provided for controlling a power tool having a rotary shaft. The method includes: disposing an inertial mass in a housing of the power tool, such that the inertial mass is freely rotatable about an axis of rotation which is axially aligned with the rotary shaft; monitoring rotational motion of the power tool in relation to the inertial mass during operation of the power tool; and activating a protective operation based on the rotational motion of the power tool in relation to the inertial mass.

    摘要翻译: 提供了一种用于控制具有旋转轴的电动工具的改进方法。 该方法包括:将惯性质量块放置在动力工具的壳体内,使得惯性质量块能够围绕与旋转轴轴向对准的旋转轴线自由转动; 在所述电动工具的操作期间监测所述动力工具相对于所述惯性质量块的旋转运动; 并且基于所述动力工具相对于所述惯性质量块的旋转运动来启动保护操作。