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    • 3. 发明公开
    • 전동 공구
    • 电动工具
    • KR1020080078920A
    • 2008-08-28
    • KR1020087018242
    • 2007-02-27
    • 히다치 고키 가부시키 가이샤
    • 사토신이치로스즈우라쓰카사오쓰신키
    • B25D17/24B25F5/00F16F7/116
    • B25D17/24B25D2217/0092B25D2250/381F16F15/22
    • An electrical power tool (1) includes a housing (10,20,30), an electrical motor (21), a motion conversion mechanism (36), a counterweight holding member (73), a counterweight (74), and support members (71,72). The electrical motor (21) is accommodated in the housing (10,20,30). The motion conversion mechanism (36) is configured to convert a rotary motion of the electrical motor (21) into a reciprocation motion. The counterweight holding member (73) extends in a direction perpendicular to directions of the reciprocation motion and is capable of being elastically deformed in the directions of the reciprocation motion. The counterweight (74) is supported by the counterweight holding member (73) and is capable of reciprocating in the directions of reciprocation motion together with the counterweight holding member (73). The support members (71,72) are positioned away from the counterweight (74) by a predetermined distance for supporting the counterweight holding member (73) to the housing (10,20,30). The counterweight (74) is interposed between or among the support members (71,72).
    • 电动工具(1)包括壳体(10,20,30),电动机(21),运动转换机构(36),配重保持构件(73),配重(74)和支撑构件 (71,72)。 电动机(21)容纳在壳体(10,20,30)中。 运动转换机构(36)被构造成将电动机(21)的旋转运动转换成往复运动。 配重保持构件(73)在与往复运动方向垂直的方向上延伸,并且能够沿往复运动的方向弹性变形。 配重(74)由配重保持构件(73)支撑,能够与配重保持构件(73)一起沿往复运动方向往复运动。 支撑构件(71,72)远离配重(74)定位预定距离,用于将配重保持构件(73)支撑到壳体(10,20,30)。 配重(74)插入在支撑构件(71,72)之间或之中。
    • 4. 发明公开
    • 마찰 클러치를 가진 파워 툴
    • 电动工具与摩擦离合器
    • KR1020100039449A
    • 2010-04-15
    • KR1020107005135
    • 2008-10-02
    • 히다치 고키 가부시키 가이샤
    • 사토신이치로
    • B25B23/00B25B21/00B25B23/147
    • B25B23/141B25B21/00B25B23/0064B25B23/147B25F5/001B25F5/003
    • A driving section generates rotational driving force and has an output shaft (31) that outputs the rotational driving force. An end-bit mounting section (5) holds an end bit (10) and is rotatable about a rotational axis. A friction clutch is provided between the end-bit mounting section and the driving section. The friction clutch includes a drive member (241) and a follow member (244). The drive member rotates together with the driving section and has a drive-side contact surface. The follow member rotates together with the end-bit mounting section and has a follow-side contact surface contactable with the drive-side contact surface. The friction clutch is movable between a transmission position where frictional force is produced between the drive-side contact surface and the follow-side contact surface so that the output shaft and the end-bit mounting section can rotate together, and a cutoff position where the output shaft and the end-bit mounting section are non-rotatable together.
    • 驱动部产生旋转驱动力,并具有输出旋转驱动力的输出轴(31)。 终端安装部分(5)保持端部钻头(10)并且可以围绕旋转轴线旋转。 在端头安装部和驱动部之间设置有摩擦离合器。 摩擦离合器包括驱动构件(241)和跟随构件(244)。 驱动部件与驱动部一起旋转并具有驱动侧接触面。 跟随构件与端部钻头安装部分一起旋转并且具有可与驱动侧接触表面接触的跟随侧接触表面。 摩擦离合器可以在驱动侧接触表面和后侧接触表面之间产生摩擦力的传动位置之间移动,使得输出轴和端部钻头安装部分可以一起旋转,并且切断位置 输出轴和端部钻头安装部分不能一起旋转。