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公开(公告)号：US10821570B2
公开(公告)日：2020-11-03
申请号：US15762608
申请日：2016-09-23
申请人： MAKITA CORPORATION
发明人： Akira Tomonaga , Katsuhito Fujinami , Ryo Imuta , Masatoshi Nakahama , Akira Mizutani , Takahiro Kawakami , Hideharu Muto , Junya Ishikawa , Ken Goto
摘要： A grinder according to one aspect of the present disclosure includes a motor, a housing for housing the motor, a spindle protruding from the housing and configured to be driven to be rotated by the motor, a wheel cover configured to cover a part of a tip end tool attached to the spindle, a detector configured to detect the wheel cover, and a controller configured to stop or restrict the spindle being driven by the motor in response to non-detection of the wheel cover by the detector.
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公开(公告)号：US11850720B2
公开(公告)日：2023-12-26
申请号：US17513553
申请日：2021-10-28
申请人： MAKITA CORPORATION
IPC分类号： B25F5/00
CPC分类号： B25F5/006
摘要： A power tool includes a motor, a spindle, an inner housing, an outer housing formed by an upper member and a lower member, a pair of interposing members and a pair of elastic members. The interposing members are arranged leftward and rightward of the inner housing, respectively, and fixedly connected to a first member, which is one of the upper member and the lower member, and at least partially in contact with an inner surface of the first member. The elastic members are held between a left portion of the inner housing and one of the interposing members and between a right portion of the inner housing and the other of the interposing members, respectively. A first end portion of each of the interposing members has at least one first surface extending to be closer to the inner housing toward a tip end of the first end portion.
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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
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.
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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
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。
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公开(公告)号：US10811937B2
公开(公告)日：2020-10-20
申请号：US15919712
申请日：2018-03-13
申请人： MAKITA CORPORATION
IPC分类号： B25F5/02 , H02K9/06 , B24B23/02 , B25F5/00 , H02K29/06 , H02K3/52 , H02K7/14 , H02K11/27 , H02K11/28
摘要： A power tool includes a brushless motor having a stator and a rotor, which includes a rotary shaft extending in a front-rear direction of the power tool. The rotary shaft rotates a spindle that extends in an up-down direction of the power tool. A fan is fixedly coupled to the rotary shaft and rotates therewith. A switch is disposed rearward of the brushless motor and a controller is disposed rearward of the switch in the front-rear direction. A battery pack is disposed rearward of the controller. A main-body housing houses the brushless motor, the switch and the controller. The main-body housing includes a first tubular part, which houses the brushless motor, and a second tubular part, which houses the switch. The diameter of the second tubular part is smaller than the diameter of the first tubular part.
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公开(公告)号：US09954418B2
公开(公告)日：2018-04-24
申请号：US14631317
申请日：2015-02-25
申请人： MAKITA CORPORATION
CPC分类号： H02K9/06 , B24B23/02 , B24B23/028 , B25F5/008 , B25F5/02 , H02K3/522 , H02K7/145 , H02K11/27 , H02K29/06 , H02K2203/09
摘要： A power tool includes a brushless motor having a stator and a rotor, which includes a rotary shaft extending in a front-rear direction of the power tool. The rotary shaft rotates a spindle that extends in an up-down direction of the power tool. A fan is fixedly coupled to the rotary shaft and rotates therewith. A switch is disposed rearward of the brushless motor and a controller is disposed rearward of the switch in the front-rear direction. A battery pack is disposed rearward of the controller. A main-body housing houses the brushless motor, the switch and the controller. The main-body housing includes a first tubular part, which houses the brushless motor, and a second tubular part, which houses the switch. The diameter of the second tubular part is smaller than the diameter of the first tubular part.
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