公开(公告)号：US11554409B2

公开(公告)日：2023-01-17

申请号：US17115023

申请日：2020-12-08

Applicant: MAKITA CORPORATION

Inventor： Shunta Mizuno ,  Masahiro Watanabe ,  Yuki Kawai

IPC: B21F15/04 ,  E04C5/16 ,  E04G21/12

Abstract: A rebar tying tool (2; 302; 402) include a feed mechanism (24), which includes a first motor (32; 304) and feeds a wire (W), and a twisting mechanism, which includes a second motor (76; 306) and twists together one or more portions of the wire. A control unit (202; 350) controls the first motor and the second motor and includes a general-purpose I/O port (202c; 350c) and a motor-control-signal output port (202a; 350a). A motor-control-signal-output-destination-switching circuit (204; 310; 406) inputs motor-control signals (UH, VH, WH, UL, VL, WL) from the control unit via the motor-control-signal output port and selectively outputs the inputted motor-control signals to either the first motor or the second motor in response to input of a switching signal (SW).

公开(公告)号：US11247323B2

公开(公告)日：2022-02-15

申请号：US16056717

申请日：2018-08-07

Applicant: MAKITA CORPORATION

Inventor： Ryunosuke Kumagai ,  Masahiro Watanabe ,  Jiro Suzuki ,  Kosuke Ito

IPC: B25B23/151 ,  B25F5/00 ,  B25B21/00 ,  B25B23/147 ,  H02P6/08 ,  B25B21/02 ,  H02K7/14 ,  H02P27/04

Abstract: An electric working machine in one aspect of the present disclosure includes a motor, a setter, and a controller. The setter is configured to modifiably set a change characteristic in changing a rotational state of the motor from a low speed rotation to a high speed rotation. The high speed rotation is greater than the low speed rotation in rotational frequency of the motor.

公开(公告)号：US11235453B2

公开(公告)日：2022-02-01

申请号：US16052747

申请日：2018-08-02

Applicant: MAKITA CORPORATION

Inventor： Yoshitaka Ichikawa ,  Goshi Ishikawa ,  Shinichi Hira ,  Yasuhito Kawai ,  Masahiro Watanabe ,  Takuya Kusakawa

IPC: B25F5/00 ,  B25B21/00 ,  H02P6/08 ,  B25B23/147 ,  H02P29/40 ,  B25B21/02 ,  H02P27/04

Abstract: An electric working machine in one aspect of the present disclosure includes a motor, a controller, and a setter. The controller is configured to change a rotational state of the motor, in response to an establishment of a condition for change after the motor is initiated, from a low speed rotation to a high speed rotation. The setter is configured to set, based on a situation in the motor in the low speed rotation, a control variable of the motor in the high speed rotation and/or the condition for change.

公开(公告)号：US09444307B2

公开(公告)日：2016-09-13

申请号：US14152299

申请日：2014-01-10

Applicant: MAKITA CORPORATION

Inventor： Masahiro Watanabe ,  Takuya Kusakawa ,  Hidenori Nagasaka

IPC: B60K6/36 ,  H02K7/14 ,  B25F5/00 ,  B25F5/02 ,  H01H9/04 ,  H01H9/06

CPC classification number: H02K7/14 ,  B25F5/001 ,  B25F5/02 ,  H01H9/04 ,  H01H9/061 ,  H01H2009/048

Abstract: A variable speed switch includes a switch main body portion which is accommodated in a housing of an electric power tool and mounted to the housing so as to be capable of relative movement, and a load sensor which is provided in the switch main body portion and capable of outputting an electric signal in proportion to the amount of distortion caused by a pressing force. The switch operating portion is mounted on the surface of the housing so as to be capable of relative displacement with respect to the housing and transmits a pressing force applied to the switch operating portion to the load sensor, with the maximum displacement amount of the switch operating portion being set to equal to or less than 5 mm.

Abstract translation: 变速开关包括开关主体部分，该开关主体部分容纳在电动工具的壳体中并且能够相对运动地安装到壳体;以及负载传感器，其设置在开关主体部分中并且能够 与由按压力引起的变形量成比例地输出电信号。 开关操作部分安装在壳体的表面上以能够相对于壳体相对移动，并且将施加到开关操作部分的按压力传递到负载传感器，其中开关的最大位移量操作 部分被设定为等于或小于5mm。

公开(公告)号：US11065754B2

公开(公告)日：2021-07-20

申请号：US15710294

申请日：2017-09-20

Applicant: MAKITA CORPORATION

Inventor： Masahiro Watanabe

IPC: B25F5/00 ,  B25B23/147 ,  B25B21/00 ,  B25B23/14 ,  B25B23/142 ,  G08C17/02

Abstract: An electric power tool includes a motor and a controller. The controller is configured to control the motor. Specifically, the controller is configured to operate in at least two modes: a first mode and a second mode. The first mode includes a plurality of stages having different control conditions related to the motor. The second mode includes at least a common stage having control conditions same as those for a specific stage among the plurality of stages of the first mode. The common stage of the second mode starts more quickly than the specific stage of the first mode.

公开(公告)号：US20190047132A1

公开(公告)日：2019-02-14

申请号：US16056717

申请日：2018-08-07

Applicant: MAKITA CORPORATION

Inventor： Ryunosuke Kumagai ,  Masahiro Watanabe ,  Jiro Suzuki ,  Kosuke Ito

IPC: B25F5/00 ,  H02K7/14 ,  B25B21/02

Abstract: An electric working machine in one aspect of the present disclosure includes a motor, a setter, and a controller. The setter is configured to modifiably set a change characteristic in changing a rotational state of the motor from a low speed rotation to a high speed rotation. The high speed rotation is greater than the low speed rotation in rotational frequency of the motor.