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：US10576971B2

公开(公告)日：2020-03-03

申请号：US16024272

申请日：2018-06-29

Applicant: MAKITA CORPORATION

Inventor： Kouichi Takeda ,  Itsuku Kato ,  Jiro Suzuki

IPC: B60W30/09 ,  B62B5/00 ,  B60L15/20 ,  B60W10/18 ,  B60W10/08 ,  B60W50/14 ,  B62B3/12

Abstract: A push cart includes a wheel, a motor, an obstacle detector, and a controller. The motor is configured to generate a rotational force that rotates the wheel. The obstacle detector is configured to detect an obstacle. The controller is configured to execute, in response to detection of the obstacle by the obstacle detector, avoidance control to control driving of the motor such that a movement of the push cart is limited. The controller is configured to disable execution of the avoidance control in response to a determination that a specified disabling condition is satisfied.

公开(公告)号：US10541636B2

公开(公告)日：2020-01-21

申请号：US15484479

申请日：2017-04-11

Applicant: MAKITA CORPORATION

Inventor： Akihiro Nakamoto ,  Itsuku Kato ,  Yuki Kawai

IPC: H02P23/28 ,  H02P27/06 ,  B23D45/16 ,  B23D47/12 ,  H02M1/08 ,  H02M7/06

Abstract: An electric working machine of an example of the present disclosure includes: a motor; a power supply portion; a controller; and a voltage detector. The power supply portion generates a DC voltage to drive the motor by rectifying an AC voltage supplied from an AC power source and smoothing by a capacitor. The controller controls energization of the motor. The voltage detector detects the AC voltage. The controller is configured to interrupt the energization when the voltage detector does not detect the AC voltage.