公开(公告)号：US20150196987A1

公开(公告)日：2015-07-16

申请号：US14597806

申请日：2015-01-15

Applicant: MAKITA CORPORATION

Inventor： Seitaro HAYASHI ,  Goshi ISHIKAWA ,  Tatsuki MORI ,  Motohiro OMURA ,  Tatsuya YOSHIZAKI

IPC: B23Q17/24 ,  B25F5/00

CPC classification number: B23Q17/2404 ,  B25B21/00 ,  B25B23/12 ,  B25B23/18 ,  B25F5/00 ,  B25F5/021 ,  H01H9/06

Abstract: A motor driven appliance in one aspect of embodiments of the present disclosure comprises a light source, a lighting unit, a motor, an operation unit, an operation detector, a reference signal output unit, a determination unit, and a control unit. The operation detector detects that the operation unit is operated, and outputs an operation detection signal that indicates that the operation unit is operated. The reference signal output unit outputs at least one reference signal that can be used as a reference for determining whether the detection by the operation detector is normal. The determination unit determines whether the operation unit is actually operated based on the operation detection signal and the at least one reference signal. The control unit controls operation of the lighting unit based on the determination made by the determination unit.

Abstract translation: 本公开的实施例的一个方面的电动机驱动装置包括光源，照明单元，电动机，操作单元，操作检测器，参考信号输出单元，确定单元和控制单元。 操作检测器检测到操作单元被操作，并且输出指示操作单元被操作的操作检测信号。 参考信号输出单元输出可用作参考的至少一个参考信号，用于确定操作检测器的检测是否正常。 确定单元基于操作检测信号和至少一个参考信号确定操作单元是否实际操作。 控制单元基于由确定单元进行的确定来控制照明单元的操作。

公开(公告)号：US20210069886A1

公开(公告)日：2021-03-11

申请号：US17014012

申请日：2020-09-08

Applicant: MAKITA CORPORATION

Inventor： Hitoshi SUZUKI ,  Seitaro HAYASHI ,  Motohiro OMURA ,  Itsuku KATO

IPC: B25F5/00 ,  H02H7/097 ,  H02P29/028

Abstract: An electric work machine (1; 110; 120; 130), such as a power tool, includes a motor (11) having a rotor, a drive part (13) that supplies electric currents to drive the motor, a rotational-direction selection part (17), and a motor-control part (14; 31, 32, 40, 50, 60; 14, 40, 60, 73, 80; 14, 60, 91). The rotational-direction selection part is configured for manually setting (selecting) the rotational direction of the rotor and outputs first and second setting signals that each indicate the set (selected) rotational direction. The motor-control part controls the drive part such that the rotor rotates in the rotational direction indicated by the first setting signal and/or the second setting signal. In response to a determination that the rotational directions indicated by the first and second setting signals are inconsistent, the motor-control part stops or prevents the drive of the motor.