Tool holder
    10.
    发明授权
    Tool holder 有权
    工具托架

    公开(公告)号:US06651990B2

    公开(公告)日:2003-11-25

    申请号:US09921887

    申请日:2001-08-06

    IPC分类号: B23B31107

    摘要: A tool holder, for mounting a bit formed with a groove onto a power tool, includes a tool-holding tool, an engagement member, and a resilient member. The tool-holding tube defines a bit insertion hole that extends in an axial direction. The tool-holding tube is formed with an elongated hole that is in connection with the bit insertion hole and that extends in the axial direction. The engagement member is disposed in the elongated hole and partially protrudes into the bit insertion hole. The engagement member is movable, by abutment with and pressing force from the bit being inserted into the bit insertion hole, in the axial direction and, when located at a retraction position in the axial direction, also outward in a radial direction of the tool-holding tube. The resilient member is disposed to an outer periphery of the tool-holding tube at the retraction position. The resilient member increases in radial dimension from an initial state by pressure from the engagement member moving outward by pressing force from the bit. The resilient member resiliently returns to the initial state when pressure from the engagement member stops because the groove of the bit is located at the retraction position. As a result, the resilient member presses the engagement member inward in the radial direction into engagement with the groove of the bit.

    摘要翻译: 用于将形成有凹槽的钻头安装到动力工具上的工具夹具包括工具保持工具,接合构件和弹性构件。 工具保持管限定沿轴向延伸的钻头插入孔。 工具保持管形成有与钻头插入孔连接并且在轴向方向上延伸的细长孔。 接合构件设置在长孔中并部分地突出到钻头插入孔中。 接合构件通过与插入钻头插入孔中的钻头的轴向抵接和抵抗力而可移动,并且当沿着轴向方向位于缩回位置时也可以在工具形状的径向方向上向外移动, 保持管。 弹性构件在退避位置处设置在工具保持管的外周。 弹性构件通过来自接合构件的压力从初始状态增加,该接合构件通过来自钻头的压力向外移动。 由于钻头的凹槽位于缩回位置,弹性构件弹性地返回初始状态,当来自接合构件的压力停止时。 结果,弹性部件沿径向向内按压啮合部件,与该钻头的凹槽啮合。