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    • 3. 发明申请
    • Auto Locking Chuck
    • 自动锁定卡盘
    • US20090200758A1
    • 2009-08-13
    • US12206361
    • 2008-09-08
    • Chin Hung LamKwok Ting Mok
    • Chin Hung LamKwok Ting Mok
    • B23B31/12
    • B23B31/1238B23B31/123B23B2231/06Y10T279/17632Y10T279/17941
    • A chuck that automatically tightens or loosens the jaws of the chuck in response to rotation of a power tool drive shaft or gearbox shaft is disclosed. The chuck has a body, a plurality of jaws and an adjustment ring that is threadably engaged with the jaws. The chuck body and the adjustment ring are each selectively rotationally coupled to the gearbox shaft of the power tool. The chuck body is also selectively rotationally coupled to the power tool housing. A mode selector is provided for placing the chuck in either drill mode or auto-lock mode. In drill mode, the chuck body is rotationally coupled to the gearbox shaft and is rotatable relative to the power tool housing, thereby allowing the chuck body to be rotationally driven by the gearbox shaft. In auto-lock mode, the adjustment ring is rotationally coupled to the gearbox shaft and the chuck body is rotationally coupled to the power tool housing to allow the adjustment ring to be rotationally driven by the gearbox shaft relative to the chuck body so as to tighten or loosen the jaws.
    • 公开了一种卡盘,其能够响应于电动工具驱动轴或变速箱轴的旋转自动地拉紧或松开卡盘的夹爪。 卡盘具有主体,多个夹爪和与夹爪螺纹接合的调节环。 卡盘体和调节环各自选择性地旋转地联接到电动工具的齿轮箱轴。 卡盘主体还选择性地旋转地联接到动力工具壳体。 提供了一种模式选择器,用于将卡盘放置在钻孔模式或自动锁定模式中。 在钻孔模式中,卡盘主体旋转地联接到齿轮箱轴并且可相对于动力工具壳体旋转,从而允许卡盘主体由齿轮箱轴旋转驱动。 在自动锁定模式中,调节环旋转地联接到齿轮箱轴,并且卡盘主体旋转地联接到动力工具壳体,以允许调节环由齿轮箱轴相对于卡盘体旋转地驱动,以便收紧 或松开下颚。