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.

公开(公告)号：US12162113B2

公开(公告)日：2024-12-10

申请号：US17273439

申请日：2019-09-06

Applicant: MAKITA CORPORATION

Inventor： Takashi Matsubara ,  Shunpei Yamaji ,  Akira Mizutani ,  Ryosuke Otani ,  Hiroki Kaneko

IPC: B24B23/00 ,  B24B23/02 ,  B24B55/05 ,  B25F5/02

Abstract: A power tool, such as a grinder, may include: a prime mover such as a motor; a power-transmission mechanism operably connected to the prime mover; a housing that houses the prime mover and the power-transmission mechanism; and a tool-accessory retaining part for holding a tool accessary. The tool-accessory retaining part is operably connected to the power-transmission mechanism. An accessory is mounted on the housing in a detachable manner. A link member moves in response to mounting and demounting of the accessory. A detection sensor is housed in an interior of the housing and includes a non-contact sensor device. The detection sensor is configured to detect movement of the link member using the non-contact sensor device.

公开(公告)号：US12030170B2

公开(公告)日：2024-07-09

申请号：US17640643

申请日：2020-08-06

Applicant: MAKITA CORPORATION

Inventor： Hiroki Kaneko ,  Akira Mizutani ,  Ryosuke Otani ,  Shunpei Yamaji ,  Junya Ishikawa ,  Fumiyoshi Saito

IPC: B25F5/00 ,  B24B47/12 ,  B25F5/02

CPC classification number: B25F5/026 ,  B24B47/12

Abstract: The disclosure discloses an electric power tool. The electric power tool may include a motor, a power transmission mechanism connected to the motor, a housing that houses the motor and the power transmission mechanism, an end tool holder to which an end tool is configured to be attached and from which the end tool is configured to be detached, and connected to the power transmission mechanism, and a handle attached to the housing. The electric power tool may be configured to prohibit rotation of the motor when a user is not gripping the handle.

公开(公告)号：US11794325B2

公开(公告)日：2023-10-24

申请号：US17672999

申请日：2022-02-16

Applicant: MAKITA CORPORATION

Inventor： Naoki Inagaki ,  Yoshitaka Machida ,  Hiroki Kaneko

IPC: B25D17/06 ,  B25D11/00 ,  B25D16/00 ,  B25D17/08

CPC classification number: B25D17/06 ,  B25D11/00 ,  B25D16/00 ,  B25D17/08

Abstract: A power tool having a rotary hammer mechanism is configured to produce hammering motion for driving a tool accessory along a driving axis and rotating motion for rotating the tool accessory around the driving axis. The power tool has a tool holder that is configured to removably hold the tool accessory. The tool holder has a rotation transmitting part configured to transmit rotating power to the tool accessory. A layer formed of carbide of a group 5 element of a periodic table is formed on the rotation transmitting part.