公开(公告)号：US11146087B2

公开(公告)日：2021-10-12

申请号：US16884788

申请日：2020-05-27

Applicant: MAKITA CORPORATION

Inventor： Motohiro Omura ,  Junya Matsushita ,  Yoshitaka Ichikawa

IPC: H02J7/00 ,  B25F5/00 ,  B25F5/02

Abstract: An electric working machine of one aspect of the present disclosure includes a connection port, a control circuit, and/or a power supply switch. The power supply switch is provided on a power supply path extending from a battery pack connected to the connection port to the control circuit. The power supply switch maintains an ON state while a power supply permission signal is output from the battery pack to the electric working machine. The control circuit outputs an ON-command signal to the power supply switch for a specified period of time in response to loss of the power supply permission signal from the battery pack.