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1. 发明申请

US20200260643A1 ELECTRIC WORKING MACHINE AND METHOD FOR CONTROLLING MOTOR OF ELECTRIC WORKING MACHINE 审中-公开
公开(公告)号：US20200260643A1
公开(公告)日：2020-08-20
申请号：US16778276
申请日：2020-01-31
申请人： MAKITA CORPORATION
发明人： Tatsuya HATA , Hiroshi NOJIRI , Yoshitaka ICHIKAWA
IPC分类号： A01D34/73 , A01D34/78 , A01G3/06 , A01D34/416 , A01D34/90 , A01D34/82
摘要： One aspect of the present disclosure provides an electric working machine. The electric working machine includes a driver, a motor, and a control circuit. Attached to the driver is a selected tool. The motor drives the selected tool attached to the driver. The control circuit sets a target rotational frequency based on the selected tool. The control circuit controls the motor to rotate at the target rotational frequency.

2. 发明申请

US20150366133A1 BRUSH CUTTER 有权
标题翻译：刷子切割机
公开(公告)号：US20150366133A1
公开(公告)日：2015-12-24
申请号：US14764627
申请日：2014-01-31
申请人： MAKITA CORPORATION
发明人： Hiroshi NOJIRI , Yoshifumi MORITA , Toshikazu MIGITA
IPC分类号： A01D34/81 , A01D34/90
CPC分类号： A01D34/81 , A01D34/90 , A01D34/902
摘要： A brush cutter includes a frame rod, a front end housing fixedly mounted to a front end of the frame rod, a cutting blade mounted on a support shaft within the front end housing, a rear end housing fixedly mounted to a rear end of the frame rod, an electric motor mounted within the rear end housing for rotation of the cutting blade, and a source of power supply for supplying electric power to the motor. In the brush cutter, a plurality of rechargeable battery packs adapted to use in electric power tools are used as the source of power supply for the motor.
摘要翻译：刷式切割机包括框架杆，固定地安装到框架杆的前端的前端壳体，安装在前端壳体内的支撑轴上的切割刀片，固定地安装到框架的后端的后端壳体杆，安装在后端壳体内用于旋转切割刀片的电动马达以及用于向马达供电的电源。在刷式切割机中，使用适用于电动工具的多个可再充电电池组作为电动机的电源。

3. 发明申请

US20140208598A1 VEGETATION CUTTER 审中-公开
标题翻译：植物切片机
公开(公告)号：US20140208598A1
公开(公告)日：2014-07-31
申请号：US14168123
申请日：2014-01-30
申请人： MAKITA CORPORATION
发明人： Yoshifumi MORITA , Akihiro NOMURA , Hiroshi NOJIRI
IPC分类号： A01G3/053
CPC分类号： A01G3/053 , A01D34/90
摘要： A vegetation cutter comprises a frame rod having a front end portion and a rear end portion, and assuming a hollow tube having an open front end; a cutter head mounted on the front end portion of the frame rod and including a drive motor, a cooling fan to be rotated by the drive motor, and a rotary cutter to be rotated by the drive motor; and a power head mounted on the rear end portion of the frame rod and providing electric power for the drive motor. The frame rod is provided with an air intake aperture located at a position rearward than the cutter head and communicating through the hollow tube toward the cutter head. The frame rod is comprised of a front part rod and a rear part rod separably coupled together by means of a tubular joint. The air intake aperture is located on the front part rod.
摘要翻译：植物切割机包括具有前端部和后端部的框架杆，并且假设具有敞开的前端的中空管; 安装在所述框架杆的前端部的刀头，包括驱动马达，由所述驱动马达旋转的冷却风扇，以及由所述驱动马达旋转的旋转刀具; 以及安装在框架杆的后端部上并为驱动马达提供电力的动力头。框架杆设置有位于比刀头后方的位置的进气孔，并且通过中空管朝向切割头连通。框架杆由前部杆和后部杆组成，后部杆通过管状接头可分离地联接在一起。进气孔位于前部杆上。

4. 发明申请

US20160149520A1 MOTOR-POWERED APPARATUS AND METHOD OF CONTROLLING THE SAME 有权
标题翻译：电动机装置及其控制方法
公开(公告)号：US20160149520A1
公开(公告)日：2016-05-26
申请号：US14941990
申请日：2015-11-16
申请人： MAKITA CORPORATION
发明人： Tomoyuki OTA , Hiroshi NOJIRI , Takuya KUSAKAWA
IPC分类号： H02P1/22
CPC分类号： B25F5/00 , A01D34/78 , A01D34/90 , A01D2034/907
摘要： A motor-powered apparatus according to one aspect of the present disclosure comprises a motor, a drive switch, a reverse switch, and a control unit. The control unit is configured to drive the motor in a reverse direction when a drive command is inputted via the drive switch after a reverse command is inputted via the reverse switch and to drive the motor in a forward direction when the drive command is inputted again via the drive switch.
摘要翻译：根据本公开的一个方面的电动马达装置包括马达，驱动开关，反向开关和控制单元。控制单元被配置为当通过反向开关输入反向命令之后经由驱动开关输入驱动命令时驱动马达，并且当再次通过再次输入驱动命令时向前驱动马达驱动开关。

5. 发明申请

US20180048252A1 ELECTRIC WORKING MACHINE, AND METHOD OF DETECTING OVERLOAD OPERATION THEREOF 审中-公开
公开(公告)号：US20180048252A1
公开(公告)日：2018-02-15
申请号：US15670242
申请日：2017-08-07
申请人： MAKITA CORPORATION
发明人： Michisada YABUGUCHI , Kouichi TAKEDA , Masumi NISHIMURA , Hiroshi NOJIRI
IPC分类号： H02P6/28 , H02P6/24 , H02P6/06
CPC分类号： H02P6/28 , B25F5/00 , H02P6/06 , H02P6/24 , H02P29/032
摘要： An electric working machine according to one aspect of the present disclosure comprises a motor, a speed setting unit, a load detection unit, a determination unit, and a parameter setting unit. The determination unit calculates an estimated value of a heat generation amount of the motor, and determines that the motor is in an overload operation state when the estimated value reaches a predetermined threshold. The parameter setting unit sets a parameter to be used for calculating the estimated value and/or the threshold in accordance with a rotation speed set by the speed setting unit.

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