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公开(公告)号：US20250117019A1
公开(公告)日：2025-04-10
申请号：US18907994
申请日：2024-10-07
Applicant: MAKITA CORPORATION
Inventor： Tatsuya YOSHIKAWA , Hirokatsu YAMAMOTO
IPC: G05D1/435
Abstract: A working robot may include a robot body, a movement unit, a working unit supported by the robot body, a height adjustment unit configured to change a height level of the working unit relative to the robot body, and a control unit. The control unit may be configured to execute an autonomous operation including a working process of causing the working unit to work while moving the robot body by the movement unit and a height adjustment process of causing the height adjustment unit to adjust the height level of the working unit relative to the robot body in multiple steps. The working robot may be configured to be switched between a first state in which the control unit executes the height adjustment process in the autonomous operation and a second state in which the control unit does not execute the height adjustment process in the autonomous operation.
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2.发明申请公开(公告)号：US20180099394A1
公开(公告)日：2018-04-12
申请号：US15724766
申请日：2017-10-04
Applicant: MAKITA CORPORATION
Inventor： Yoshitaka ICHIKAWA , Hirokatsu YAMAMOTO , Ryo UMEMOTO , Kunihisa SHIMA
CPC classification number: B25D16/006 , B25D17/043 , B25D17/24 , B25D2211/068 , B25D2216/0015 , B25D2216/0023 , B25D2216/0038 , B25D2216/0084 , B25D2222/72 , B25D2250/121 , B25D2250/201 , B25D2250/221 , B25D2250/265
Abstract: An electric power tool according to one aspect of the present disclosure includes a main body, a motor, a tool holder configured to hold a tool bit, a hammer, a motion converter, a rotation transmitter, a first load detector, a second load detector, and a motor controller. The first load detector detects, based on information indicating a drive state of the motor, a load imposed from a work piece to the tool bit. The second load detector detects, based on information indicating a behavior of the main body, a load imposed from the work piece to the tool bit. The motor controller sets an upper limit of rotational speed of the motor to a predetermined no-load rotational speed in response to no-load on the tool bit being detected by both the first load detector and the second load detector.
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公开(公告)号：US20170129090A1
公开(公告)日：2017-05-11
申请号：US15341164
申请日：2016-11-02
Applicant: MAKITA CORPORATION
Inventor： Hirokatsu YAMAMOTO
CPC classification number: B25F5/00 , G06F9/4812 , G08C17/02 , G08C2201/10 , H02P6/00
Abstract: An electric working machine including a motor, an electric-power supply unit, a control unit, and a signal processing unit. The signal processing unit performs a signal control process for sending and receiving a signal to and from the signal processing unit and an external device, and receives at least a stop-command signal from the external device. The control unit stops the electric power supply to the motor in a case where the stop-command signal is received at the signal processing unit when the electric power supply from the electric-power supply unit to the motor is in process.
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公开(公告)号：US20160151845A1
公开(公告)日：2016-06-02
申请号：US14904240
申请日：2014-03-31
Applicant: MAKITA CORPORATION
Inventor： Hirokatsu YAMAMOTO , Takaaki OSADA , Yasushi OGURA
CPC classification number: B23D59/001 , B23D49/16 , B23D49/162 , B23D51/16
Abstract: A reciprocating electric power tool in one aspect of the present invention includes an attachment unit, a motor, a power transmission unit, and a controller. The controller is configured to operate the motor at a first speed when activated; to operate the motor at a second speed that is higher than the first speed when a first condition is satisfied after activation; and, to operate the motor at a third speed that is higher than the second speed when a second condition is satisfied after the first condition is satisfied.
Abstract translation: 本发明的一个方面的往复式电动工具包括安装单元，马达，动力传递单元和控制器。 控制器被配置为在激活时以第一速度操作电动机; 以在激活后满足第一条件时以比第一速度高的第二速度操作电动机; 并且在满足第一条件之后满足第二条件时，以高于第二速度的第三速度操作电动机。
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公开(公告)号：US20210078153A1
公开(公告)日：2021-03-18
申请号：US17018079
申请日：2020-09-11
Applicant: MAKITA CORPORATION
Inventor： Hikaru SUNABE , Hirokatsu YAMAMOTO , Takaaki OSADA
Abstract: An electric working machine in one aspect of the present disclosure includes an output shaft, a motor, a housing, an acceleration detector, a twisted motion detector, a reference level changer, and a motor controller. The acceleration detector detects an acceleration of the housing in a circumferential direction of the output shaft. The twisted motion detector detects a twisted motion of the housing based on a reference level and the acceleration detected. The reference level determines that the housing is twisted. The reference level changer changes the reference level based on a rotating motion of the output shaft.
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Patent Agency Ranking
公开(公告)号：US20180272511A1
公开(公告)日：2018-09-27
申请号：US15928788
申请日：2018-03-22
Applicant: MAKITA CORPORATION
Inventor： Masahiko SAKO , Takaaki OSADA , Hirokatsu YAMAMOTO
IPC: B25B21/02 , B25B23/147
CPC classification number: B25B21/02 , B25B23/1405 , B25B23/1475
Abstract: An impact fastening tool may include a motor; a hammer configured to be rotationally driven by the motor; an anvil configured to he hit in a rotational direction by the hammer; a signal obtainer configured to obtain a variable signal. which varies in accordance with a hit to the anvil by the hammer; and a seating determiner configured to determine whether or not a fastener has been seated based on the variable signal obtained by the signal obtainer, wherein the seating determiner is configured to determine whether or not the fastener has been seated based on a signal component of the variable signal obtained by the signal obtainer, the signal component corresponding to a predetermined reference frequency.
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公开(公告)号：US20160305438A1
公开(公告)日：2016-10-20
申请号：US15087273
申请日：2016-03-31
Applicant: MAKITA CORPORATION
Inventor： Hirokatsu YAMAMOTO , Yuki KAWAI , Makoto TAKAHASHI
IPC: F04D27/00 , F04D29/28 , F04D29/32 , A47L5/14 , F04D29/52 , F04D29/44 , F04D29/54 , F04D25/06 , F04D29/42
CPC classification number: F04D27/004 , A01G20/47 , F04D25/0613 , F04D25/0673 , F04D25/0693 , F04D25/166 , F04D29/4226
Abstract: A fluid aparatus includes an apparatus main body that includes a motor and a fan driven by the motor, a frame on which the apparatus main body is mounted, a pipe that is detachably attached to the apparatus main body to discharge and introduce a fluid by rotation of the fan, an operation unit that is provided to the pipe to input an operation command for the apparatus main body by operation from outside, a cable that transmits a signal between the operation unit and the apparatus main body, and a connecting portion that is provided to the cable to separably couple the operation unit and the apparatus main body to each other.
Abstract translation: 流体装置包括：设备主体，包括电动机和由电动机驱动的风扇;安装设备主体的框架;可拆卸地附接到设备主体的管道，用于通过旋转排出和引入流体 所述操作单元设置在所述管道上，以从外部操作输入用于所述装置主体的操作命令，在所述操作单元和所述装置主体之间传输信号的电缆和连接部分， 提供给电缆以使操作单元和设备主体彼此可分离地联接。
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公开(公告)号：US20160190960A1
公开(公告)日：2016-06-30
申请号：US14978697
申请日：2015-12-22
Applicant: MAKITA CORPORATION
Inventor： Yuki KAWAI , Yoshitaka ICHIKAWA , Hirokatsu YAMAMOTO , Ying YANG
CPC classification number: H02P6/157 , H02P6/085 , H02P6/14 , H02P27/08 , H02P2201/03
Abstract: A motor-driven apparatus in one aspect of the present disclosure includes: a brushless motor; a full-wave rectifier circuit; a drive circuit; a controller; and a forcible stop unit. The forcible stop unit performs a forcible stop control to temporarily forcibly stop a switching operation of a plurality of switching elements during a stop period when a full-wave rectified voltage is smaller than an induced voltage generated by a plurality of coils, and the switching operation of the plurality of switching elements is to be stopped.
Abstract translation: 本公开的一个方面的电动驱动装置包括：无刷电动机; 全波整流电路; 驱动电路; 控制器 和强制停机单元。 强制停止单元执行强制停止控制，以在全波整流电压小于由多个线圈产生的感应电压的停止期间临时强制停止多个开关元件的开关动作，并且开关动作 要停止多个开关元件。
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公开(公告)号：US20250117023A1
公开(公告)日：2025-04-10
申请号：US18901958
申请日：2024-09-30
Applicant: MAKITA CORPORATION
Inventor： Tatsuya YOSHIKAWA , Hirokatsu YAMAMOTO , Masahiro KOJIMA , Genki TOYODA
Abstract: The working robot may include: a movement unit configured to move the working robot; a movement motor configured to drive the movement unit; a battery; a control unit configured to control the movement motor; and a robot power receiver. The charging station may include: a station power transmitter; and a station plate placed on a ground. When the working robot is docked with the charging station and in an unchargeable state in which charging to the battery is unable to be started, the control unit may execute a docking retry process to move the working robot by the movement unit and dock the working robot again with the charging station. While the working robot is moving during the docking retry process, at least a part of the working robot may overlap the station plate as viewed in a direction perpendicular to the ground.
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公开(公告)号：US20230027921A1
公开(公告)日：2023-01-26
申请号：US17855367
申请日：2022-06-30
Applicant: MAKITA CORPORATION
Inventor： Ryo UMEMOTO , Hirokatsu YAMAMOTO
Abstract: A cart may include a driving wheel, a motor configured to rotate the driving wheel, a motor drive circuit configured to drive the motor, a motor brake circuit configured to electrically brake the motor, a control device configured to control the motor via the motor drive circuit and the motor brake circuit so that a travelling speed of the cart becomes equal to or lower than an upper limit travelling speed, and a temperature sensor configured to detect a temperature of the motor brake circuit. The control device may be configured to change the upper limit travelling speed to a second upper limit travelling speed lower than the first upper limit travelling speed when the upper limit travelling speed is a first upper limit travelling speed and the temperature detected by the temperature sensor exceeds a first predetermined temperature.
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