公开(公告)号：US20220134528A1

公开(公告)日：2022-05-05

申请号：US17513553

申请日：2021-10-28

Applicant: MAKITA CORPORATION

Inventor： Takafumi KOTSUJI ,  Shin NAKAMURA ,  Akira MIZUTANI ,  Masatoshi NAKAHAMA ,  Yoshihiro OZEKI

IPC: B25F5/00

Abstract: 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.

公开(公告)号：US20180281146A1

公开(公告)日：2018-10-04

申请号：US15762608

申请日：2016-09-23

Applicant: MAKITA CORPORATION

Inventor： Akira TOMONAGA ,  Katsuhito FUJINAMI ,  Ryo IMUTA ,  Masatoshi NAKAHAMA ,  Akira MIZUTANI ,  Takahiro KAWAKAMI ,  Hideharu MUTO ,  Junya ISHIKAWA ,  Ken GOTO

IPC: B24B23/02 ,  B24B55/05

CPC classification number: B24B23/022 ,  B24B23/02 ,  B24B49/10 ,  B24B55/05 ,  B24B55/052

Abstract: 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.

公开(公告)号：US20220168867A1

公开(公告)日：2022-06-02

申请号：US17536311

申请日：2021-11-29

Applicant: MAKITA CORPORATION

Inventor： Shin NAKAMURA ,  Takafumi KOTSUJI ,  Masatoshi NAKAHAMA

IPC: B24B55/10 ,  B23Q11/00

Abstract: A dust collecting attachment removably attachable to a power tool that includes a housing and a spindle: a covering part formed such that a drive axis of a spindle passes through the inside of a suction hole in the attached state of the power tool and at least partially covers a periphery of the tool mounting part; a discharging part connected to the covering part and configured to discharge dust from the inside of the covering part; and at least one elastically deformable engagement piece connected to the covering part and having a claw configured to engage with the housing at a predetermined position of the housing.

公开(公告)号：US20150263592A1

公开(公告)日：2015-09-17

申请号：US14631317

申请日：2015-02-25

Applicant: MAKITA CORPORATION

Inventor： Takahiro KAWAKAMI ,  Masatoshi NAKAHAMA

IPC: H02K9/06 ,  B24B23/02 ,  H02K11/00

CPC classification number: H02K9/06 ,  B24B23/02 ,  B24B23/028 ,  B25F5/008 ,  B25F5/02 ,  H02K3/522 ,  H02K7/145 ,  H02K11/27 ,  H02K29/06 ,  H02K2203/09

Abstract: 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.

Abstract translation: 电动工具包括具有定子和转子的无刷电动机，其包括沿电动工具的前后方向延伸的旋转轴。 旋转轴旋转沿电动工具的上下方向延伸的心轴。 风扇固定地连接到旋转轴并随之旋转。 开关设置在无刷电动机的后方，并且控制器设置在开关的前后方向的后方。 电池组设置在控制器的后方。 主体外壳容纳无刷电机，开关和控制器。 主体壳体包括容纳无刷电动机的第一管状部分和容纳开关的第二管状部分。 第二管状部件的直径小于第一管状部件的直径。

公开(公告)号：US20240066678A1

公开(公告)日：2024-02-29

申请号：US18388244

申请日：2023-11-09

Applicant: MAKITA CORPORATION

Inventor： Takafumi KOTSUJI ,  Shin NAKAMURA ,  Akira MIZUTANI ,  Masatoshi NAKAHAMA ,  Yoshihiro OZEKI

IPC: B25F5/00

CPC classification number: B25F5/006

Abstract: 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.

公开(公告)号：US20230256581A1

公开(公告)日：2023-08-17

申请号：US18012827

申请日：2021-04-15

Applicant: MAKITA CORPORATION

Inventor： Akira MIZUTANI ,  Masatoshi NAKAHAMA ,  Daiki IMAIDA

IPC: B25F5/02 ,  B24B23/02

CPC classification number: B25F5/02 ,  B24B23/02

Abstract: A work tool includes: a motor; a housing; an operation member extending in a longitudinal direction of the tool along the housing, configured to be pivotal about a pivotal axis by being subjected to a grip operation by a user, and exposed outside the housing on both first and second sides with respect to the pivotal axis; and a switch configured to detect that the operation member is moved to a first startup position in a first direction and to detect that the operation member is moved to a second startup position in a second direction opposite the first. The work tool is configured so that the motor is driven in a case where the pivotal movement to the first startup position is detected by the switch, and that the motor is driven in a case where the pivotal movement to the second startup position is detected by the switch.

公开(公告)号：US20180205293A1

公开(公告)日：2018-07-19

申请号：US15919712

申请日：2018-03-13

Applicant: MAKITA CORPORATION

Inventor： Takahiro KAWAKAMI ,  Masatoshi NAKAHAMA

IPC: H02K9/06 ,  H02K11/27 ,  B25F5/02 ,  H02K7/14 ,  B25F5/00 ,  H02K29/06 ,  B24B23/02 ,  H02K3/52

Abstract: 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.

公开(公告)号：US20170125192A1

公开(公告)日：2017-05-04

申请号：US15264870

申请日：2016-09-14

Applicant: MAKITA CORPORATION

Inventor： Takamasa HANAI ,  Hikaru SUNABE ,  Satoshi NINAGAWA ,  Shin NAKAMURA ,  Masatoshi NAKAHAMA ,  Kazusa FUKUDA ,  Kenichi MIYATA

IPC: H01H25/00 ,  H01H21/00 ,  H01H9/06 ,  H01H9/20 ,  B24B23/02 ,  B25F5/02

CPC classification number: H01H25/00 ,  B24B23/028 ,  B25F5/00 ,  B25F5/02 ,  H01H9/06 ,  H01H9/20 ,  H01H21/00 ,  H01H2001/508

Abstract: 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：US20140191481A1

公开(公告)日：2014-07-10

申请号：US14146120

申请日：2014-01-02

Applicant: MAKITA CORPORATION

Inventor： Takahiro KAWAKAMI ,  Shin NAKAMURA ,  Masatoshi NAKAHAMA

IPC: B23Q3/14

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

Abstract: 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.

Abstract translation: 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。