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    • 95. 发明授权
    • Clutch mechanism in power driven screwdriver
    • 动力螺丝刀离合器机构
    • US5568849A
    • 1996-10-29
    • US382797
    • 1995-02-02
    • Katsuhiko SasakiYoshinori Shibata
    • Katsuhiko SasakiYoshinori Shibata
    • B25B21/00B25B23/14B25B23/157F16D43/20F16D43/202
    • B25B23/0064B25B23/14B25B23/141F16D43/2022
    • A power driven screwdriver including a housing, a spindle rotatably and axially movably disposed within the housing, a motor for driving the spindle, and a clutch mechanism interposed between the motor and the spindle. The clutch mechanism includes a drive clutch member rotatably driven by the motor, a driven clutch member rotatable with the spindle, and a drive clutch shifting mechanism. The drive clutch shifting mechanism is operable to move the drive clutch member from a first position to a second position spaced from the first position in a forward direction toward the driven clutch member when the driven clutch member is brought to engage the drive clutch member. The drive clutch shifting mechanism is also operable to move the drive clutch member from the second position to the first position when the driven clutch member is brought to be disengaged from the drive clutch member.
    • 一种电动螺丝刀,包括壳体,可旋转并轴向可移动地设置在壳体内的主轴,用于驱动主轴的电动机和插入在电动机和主轴之间的离合器机构。 离合器机构包括由电机可旋转地驱动的驱动离合器部件,可与主轴一起旋转的从动离合器部件和驱动离合器变速机构。 驱动离合器变速机构可操作以在驱动离合器构件与驱动离合器构件接合时将驱动离合器构件从第一位置向前方移动到与从动离合器构件相对的第一位置间隔开的第二位置。 当从动离合器构件与驱动离合器构件分离时,驱动离合器移动机构还可操作以将驱动离合器构件从第二位置移动到第一位置。