公开(公告)号：US11213933B2

公开(公告)日：2022-01-04

申请号：US16157475

申请日：2018-10-11

Applicant: MAKITA CORPORATION

Inventor： Itsuku Kato ,  Akira Tomonaga ,  Katsuna Hayashi ,  Tokuo Hirabayashi ,  Tomoyuki Kondo

IPC: B25B21/02 ,  B25D11/04 ,  H02P29/20 ,  H02P29/40 ,  B25B23/147 ,  B25F5/00

Abstract: An electric working machine in one aspect of the present disclosure includes: a motor; a controller for controlling driving of the motor; a first setter; and a second setter. The first setter is operated for setting, as a control method for the motor, which is usable by the controller, one of control methods preliminarily registered. The second setter is operated for setting, as a control method for the motor, which is usable by the controller, at least one of the control methods settable via the first setter.

公开(公告)号：US11407091B2

公开(公告)日：2022-08-09

申请号：US17028058

申请日：2020-09-22

Applicant: MAKITA CORPORATION

Inventor： Ryunosuke Kumagai ,  Akira Tomonaga ,  Kazuya Arakawa

IPC: B25F5/02 ,  B25B21/02 ,  B25D11/10 ,  B25D11/04 ,  B25F5/00 ,  F16H3/54

Abstract: A power tool includes a motor disposed in a motor housing, a handle extending downward from the motor housing, a main switch provided on the handle and configured to switch the motor ON and OFF, and a state-changing operation part located on a lower portion of the motor housing or on an upper-end portion of the handle. The state-changing operation part is located upward of the main switch and is configured to effect a change of a rotational state of the motor, other than a direction of rotation of the motor, or an illumination level of a light.

公开(公告)号：US11161227B2

公开(公告)日：2021-11-02

申请号：US16157492

申请日：2018-10-11

Applicant: MAKITA CORPORATION

Inventor： Itsuku Kato ,  Akira Tomonaga ,  Katsuna Hayashi ,  Tokuo Hirabayashi ,  Tomoyuki Kondo

IPC: B25B21/02 ,  B25F5/00 ,  H02P6/17 ,  B25D11/04

Abstract: An electric working machine in one aspect of the present disclosure includes: a motor, a manipulator, a setter, and a controller. The setter sets first control characteristics preliminarily registered. The first control characteristics are set to achieve a rotational speed of the motor from a minimum rotational speed to a maximum rotational speed with a manipulating range of the manipulator, which is 50% or less of an effective manipulating range thereof.

公开(公告)号：US10821570B2

公开(公告)日：2020-11-03

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 ,  B24B49/10

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：US10821577B2

公开(公告)日：2020-11-03

申请号：US15880728

申请日：2018-01-26

Applicant: MAKITA CORPORATION

Inventor： Ryunosuke Kumagai ,  Akira Tomonaga ,  Kazuya Arakawa

IPC: B25F5/00 ,  B25B21/02 ,  B25F5/02 ,  B25D11/10 ,  B25D11/04 ,  F16H3/54

Abstract: A power tool includes a motor disposed in a motor housing, a handle extending downward from the motor housing, a main switch provided on the handle and configured to switch the motor ON and OFF, and a state-changing operation part located on a lower portion of the motor housing or on an upper-end portion of the handle. The state-changing operation part is located upward of the main switch and is configured to effect a change of a rotational state of the motor, other than a direction of rotation of the motor, or an illumination level of a light.