公开(公告)号：US10410811B2

公开(公告)日：2019-09-10

申请号：US15264870

申请日：2016-09-14

申请人： MAKITA CORPORATION

发明人： Takamasa Hanai ,  Hikaru Sunabe ,  Satoshi Ninagawa ,  Shin Nakamura ,  Masatoshi Nakahama ,  Kazusa Fukuda ,  Kenichi Miyata

IPC分类号： H01H25/00 ,  B24B23/02 ,  B25F5/02 ,  H01H9/06 ,  H01H9/20 ,  H01H21/00 ,  B25F5/00 ,  H01H1/50

摘要： A power tool (1) includes an electric motor (2) as a drive source and a start switch (20; 61) that starts the electric motor (2) and is lockable in an ON position in a lock-ON state. An electromagnetic actuator (30; 40; 50; 60) pushes out or pulls in an actuation pin (30a; 40a; 50a; 60a) with respect to a body of the electromagnetic actuator (30; 40; 50; 60) in response to cutting off of a supply of electrical current to the power tool (1). The pushed-out or pulled-in actuation pin, directly or indirectly, disengages the start switch (20; 61) from the lock-ON state and/or prevents the start switch (20; 61) from being shifted into the lock-ON state.

公开(公告)号：US09168650B2

公开(公告)日：2015-10-27

申请号：US13749185

申请日：2013-01-24

申请人： MAKITA CORPORATION

发明人： Toru Itakura ,  Shin Nakamura ,  Takayuki Tahara ,  Akira Mizutani

IPC分类号： B25F5/00 ,  B24B23/04 ,  B24B47/16

CPC分类号： B25F5/00 ,  B24B23/04 ,  B24B47/16 ,  B25F5/006

摘要： An oscillating rotary electric power tool, in which a spindle with a distal end tool attached thereto is projected downward from a front end portion of a housing accommodating a motor, and the housing also accommodates a coupling member rotatable integrally with an output shaft of the motor, a crankshaft fitted with the coupling member in a depression and projection fitting structure, and a link member to which the spindle is fixed and power is transmitted from the crankshaft to rotate clockwise and counterclockwise in an oscillating manner so that the link member will be driven by the motor to rotate the spindle clockwise and counterclockwise in the oscillating manner, wherein an elastic body is interposed between the coupling member and the crankshaft in the same axial direction as the output shaft.

摘要翻译： 一种振动旋转电动工具，其中附接有远端工具的主轴从容纳电动机的壳体的前端部向下突出，并且所述壳体还容纳与电动机的输出轴一体旋转的联接构件 ，配有联接构件的曲轴，位于凹陷和突出配合结构中，以及连杆构件，主轴被固定到该连杆构件，并且动力从曲轴传递，以振荡方式顺时针和逆时针方向旋转，使得连杆构件将被驱动 通过电动机以摆动方式顺时针和逆时针旋转主轴，其中弹性体在与输出轴相同的轴向方向插入在联接构件和曲轴之间。

公开(公告)号：US11045938B2

公开(公告)日：2021-06-29

申请号：US15418112

申请日：2017-01-27

申请人： MAKITA CORPORATION

发明人： Junichi Iwakami ,  Shin Nakamura ,  Akira Mizutani ,  Takafumi Kotsuji

IPC分类号： B25F5/02 ,  B25F5/00 ,  B24B23/04 ,  B24B27/08 ,  B27B19/00

摘要： Several means 71, 72, 73, 74, and 75 are provided for restricting a relative displacement in a separating direction of half-split housings 50L, 50R. At one or more of several screw-connection parts 60 of the left and right half-split housings 50L, 50R, a press-fitting protrusion 71a is provided in an insertion hole 62a of a boss-receiving part 62 into which a screw-boss part 61 is inserted. By press-fitting the screw-boss part 61 to the boss-receiving part 62, a separation resistance may be introduced between the left and right half-split housings 50L, 50R.

公开(公告)号：US10478943B2

公开(公告)日：2019-11-19

申请号：US15258045

申请日：2016-09-07

申请人： MAKITA CORPORATION

发明人： Shin Nakamura ,  Takafumi Kotsuji ,  Ken Goto ,  Akira Mizutani ,  Junya Ishikawa

IPC分类号： B24B55/05 ,  B24B23/02 ,  B25F5/02

摘要： A grinder (100) includes a motor (12), a housing (4, 6, 30), a spindle (24), a first cover (120), and a second cover (170). The spindle protrudes downward from the housing, is driven by the motor, and thereby rotates. The first cover is provided in the circumferential direction of the spindle, is fixed to the housing, and at least partially covers a tool accessory (40), which is mounted on the spindle, from above. The second cover is detachably mounted on the housing (6) independently of the first cover.

公开(公告)号：US09539682B2

公开(公告)日：2017-01-10

申请号：US14146120

申请日：2014-01-02

申请人： MAKITA CORPORATION

发明人： Takahiro Kawakami ,  Shin Nakamura ,  Masatoshi Nakahama

IPC分类号： B23B31/10 ,  B23Q3/14 ,  B24B23/04 ,  B23D61/00 ,  B24B45/00 ,  B27B5/32 ,  B27B19/00

CPC分类号： B23Q3/14 ,  B23B31/10 ,  B23D61/006 ,  B24B23/04 ,  B24B45/006 ,  B27B5/32 ,  B27B19/006 ,  Y10T279/33 ,  Y10T279/34

摘要： A power tool includes a clamp shaft for clamping a tool accessory to the power tool and a clamp shaft holding mechanism for selectively locking the clamp shaft to hold the clamp shaft in a position that secures the tool accessory on the power tool. The power tool also includes a lever for shifting the clamp shaft holding mechanism between clamped and unclamped states. The lever is configured such that when an operator grasps the lever and moves it toward a position for releasing the tool accessory, the lever and the operator's hand move away from the tool accessory.

摘要翻译： 电动工具包括用于将工具附件夹持到动力工具的夹紧轴和用于选择性地锁定夹紧轴以将夹持轴保持在将工具附件固定在动力工具上的位置的夹紧轴保持机构。 动力工具还包括用于在夹紧状态和非夹紧状态之间移动夹紧轴保持机构的杆。 杠杆被构造成使得当操作者抓住杆并将其移动到用于释放工具附件的位置时，杠杆和操作者的手离开工具附件。