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    • 5. 发明公开
    • Quick change bit holder with ring magnet
    • 用环形磁铁快速更换刀架
    • EP2628570A3
    • 2018-02-14
    • EP13155401.6
    • 2013-02-15
    • Black & Decker Inc.
    • Peters, Michael PBrunson, Mark E.Moss, Darren B.Lee, David B.Mitchener Keffer, Ruth E.
    • B25B23/00B25B23/12B23B31/10B23B31/107B23B31/22
    • A bit holder assembly (10) for a rotary tool, comprising a body (12) having a shank (16) at its rearward end and a coaxial socket (20) formed at a second end to allow a tool bit (40) to be inserted therein, said body (12) having an opening (22) formed in the body (12) in communication with said socket (20); a retraction collar (14) slidably disposed on said body (12); a coil spring (30) biasing the retraction collar (14) forwardly; a retainer (34) held in a bottom of said opening (22) formed in the body (12) by one of said retraction collar (14) and said coil spring (30), wherein said tool bit (40) is removed by sliding the retraction collar (14) rearwardly, to compress the coil spring (30) and allow the retainer (34) to retract back up the opening (22); and a ring magnet (50) is disposed at a forward end of the retraction collar (14) to magnetize a fastener (54) to retain the fastener to the tool bit (40).
    • 一种用于旋转工具的刀架组件(10),包括在其后端具有柄部(16)的主体(12)和在第二端部形成的同轴承窝(20),以允许刀头(40)成为 插入其中,所述主体(12)具有形成在主体(12)中与所述插座(20)连通的开口(22); 可滑动地设置在所述主体(12)上的回缩套环(14); 螺旋弹簧(30),其向前偏压所述缩回轴环(14); (14)和所述螺旋弹簧(30)中的一个形成在主体(12)中的所述开口(22)的底部中的保持器(34),其中所述工具头(40)通过滑动 向后收缩套环(14)以压缩螺旋弹簧(30)并允许保持器(34)向上缩回开口(22)。 并且环形磁体(50)设置在缩回套环(14)的前端以便磁化紧固件(54)以将紧固件保持到工具头(40)。