公开(公告)号：US11192231B2

公开(公告)日：2021-12-07

申请号：US16618853

申请日：2018-05-22

Applicant: MAKITA CORPORATION

Inventor： Hayato Kano ,  Akihiro Yamada ,  Hiroki Kaneko

IPC: B25F5/02 ,  H02J1/00 ,  A41D19/00 ,  A41D1/00 ,  A41D1/02

Abstract: A power supply system includes a wearing part worn on a hand of a worker, a connecting member held by the wearing part, and a control circuit. The connecting member is disposed at a position where it is attached to a tool-side attachment part provided on a grip of a power tool when the worker grips the grip. The connecting member includes, in an exposed manner, a power source terminal that supplies electric power to the power tool and a signal terminal that receives a response signal from the power tool, which are electrically connected to the power tool in an attached state where the connecting member is attached to the tool-side attachment part. The control circuit makes the power source terminal and a power source unit electrically continuous when the signal terminal receives the response signal and makes them electrically discontinuous when the signal terminal receives no response signal.