公开(公告)号：US20210016405A1

公开(公告)日：2021-01-21

申请号：US17060178

申请日：2020-10-01

Applicant: MAKITA CORPORATION

Inventor： Keita MORI ,  Kiyonobu YOSHIKANE

IPC: B23Q11/00 ,  B25D16/00 ,  B25D17/20

Abstract: A dust collector includes a body configured to be removably attached to a lower side of a tool body of a drilling tool, a dust storing part to be disposed on a lower side of the body, a sliding part having a suction port and held by the body so as to be slidable in a front-rear direction, a dust transfer passage extending within the sliding part and connecting the suction port and an inlet of the dust storing part, and a tool connection passage disposed within an internal space of the body and configured to connect an outlet of the dust storing part and an inlet of the tool body of the drilling tool. The dust storing part includes the inlet, a filter, a dust storing space and the outlet. The filter is disposed forward of the inlet of the dust storing part.

公开(公告)号：US20200061764A1

公开(公告)日：2020-02-27

申请号：US16666501

申请日：2019-10-29

Applicant: MAKITA CORPORATION

Inventor： Masanori FURUSAWA ,  Keita MORI

IPC: B23Q11/00 ,  B25F5/02 ,  B23B47/34

Abstract: A dust collection device for an electric power tool includes a main body case that includes an air exhaust port and is attachable to a hammer drill, a dust box provided therein with a filter, and a tubular sliding portion that has a base end connected to a connection port provided on the main body case, that includes a suction port at its front end, and that is slidable in a front-rear direction, and includes therein a dust collection path formed to pass from the suction port through the filter to the air exhaust port. The connection port is provided on a side surface of the main body case, and connected to a flexible hose serving as a base end of the sliding portion, and a side surface of the dust box is provided with an inlet port communicating with the connection port.

公开(公告)号：US20170252915A1

公开(公告)日：2017-09-07

申请号：US15421118

申请日：2017-01-31

Applicant: MAKITA CORPORATION

Inventor： Masanori FURUSAWA ,  Keita MORI ,  Yoshiro TADA

IPC: B25D16/00 ,  B25D11/06

CPC classification number: B25D16/006 ,  B25D11/062 ,  B25D2211/003 ,  B25D2211/061 ,  B25D2216/0015 ,  B25D2216/0023 ,  B25D2216/0038 ,  B25D2216/0084

Abstract: A hammer drill includes a housing, a tool holder, a hammering member, a gear, and a conversion member. The gear is switched to a first state where a rotation of the intermediate shaft is transmitted and a second state where the rotation of the intermediate shaft is not transmitted, and a mode switching member is configured to perform a switching operation of the state of the gear from an outside of the housing. The switching of the state of the gear by the mode switching member provides at least two operation modes of a hammer drill mode where the gear integrally rotates with the intermediate shaft to generate the rotation and a reciprocation of the hammering member on the tool holder and a hammer mode where the gear is separated from the rotation of the intermediate shaft to generate only the reciprocation of the hammering member to be selectable.

公开(公告)号：US20200306906A1

公开(公告)日：2020-10-01

申请号：US16784485

申请日：2020-02-07

Applicant: MAKITA CORPORATION

Inventor： Kiyonobu YOSHIKANE ,  Keita MORI ,  Yoshitaka MACHIDA ,  Yu KOBAYASHI

IPC: B23Q11/00 ,  B25F5/02 ,  B23Q17/00

Abstract: Appropriate control is performed in accordance with the state of a power tool and/or a dust collection attachment. A dust collection system for a power tool includes a hammer drill to hold a bit, a dust collection attachment connected to the hammer drill, and a dust collection controller that controls the operation of the hammer drill and/or the dust collection attachment in accordance with the specifications of the hammer drill and/or the dust collection attachment.

公开(公告)号：US20190061132A1

公开(公告)日：2019-02-28

申请号：US16107212

申请日：2018-08-21

Applicant: MAKITA CORPORATION

Inventor： Keita MORI ,  Masanori FURUSAWA

IPC: B25D17/24 ,  B25F5/02 ,  B25F5/00

Abstract: A power tool includes a tool body, a motor, a handle part, and an elastic member. The tool body extends along the driving axis in the front-rear direction. The motor has a motor shaft. The motor shaft is rotatably supported by the tool body and extends in the front-rear direction. The handle part includes a grip part. The grip part extends in a direction crossing the driving axis. The elastic member is interposed between a rear end portion of the motor shaft and an inner wall surface of the handle part. The elastic member biases the motor shaft and the handle part away from each other in the front-rear direction.

公开(公告)号：US20200306911A1

公开(公告)日：2020-10-01

申请号：US16775332

申请日：2020-01-29

Applicant: MAKITA CORPORATION

Inventor： Hitoshi IIDA ,  Keita MORI

IPC: B23Q17/00 ,  B25F5/00 ,  B23Q11/00 ,  B08B15/04

Abstract: The dust concentration is prevented from increasing with uncollected dust scattering in a work environment. A dust collection system for a power tool includes a power tool, a dust collection apparatus connected to the power tool, and a system control unit that controls an operation of the system for controlling an operation of the power tool and/or an operation of the dust collection apparatus in accordance with the dust concentration obtained from an external unit.

公开(公告)号：US20190091819A1

公开(公告)日：2019-03-28

申请号：US16133887

申请日：2018-09-18

Applicant: MAKITA CORPORATION

Inventor： Keita MORI ,  Kiyonobu YOSHIKANE

IPC: B23Q11/00 ,  B25D16/00 ,  B25D17/20

Abstract: A dust collector includes a body configured to be removably attached to a lower side of a tool body of a drilling tool, a dust storing part to be disposed on a lower side of the body, a sliding part having a suction port and held by the body so as to be slidable in a front-rear direction, a dust transfer passage extending within the sliding part and connecting the suction port and an inlet of the dust storing part, and a tool connection passage disposed within an internal space of the body and configured to connect an outlet of the dust storing part and an inlet of the tool body of the drilling tool. The dust storing part includes the inlet, a filter, a dust storing space and the outlet. The filter is disposed forward of the inlet of the dust storing part.

公开(公告)号：US20180021905A1

公开(公告)日：2018-01-25

申请号：US15608012

申请日：2017-05-30

Applicant: MAKITA CORPORATION

Inventor： Masanori FURUSAWA ,  Keita MORI

IPC: B23Q11/00 ,  B25F5/02

CPC classification number: B23Q11/0046 ,  B23B47/34 ,  B23B2270/30 ,  B23B2270/62 ,  B23Q11/0071 ,  B25F5/02

Abstract: A dust collection device for an electric power tool includes a main body case that includes an air exhaust port and is attachable to a hammer drill, a dust box provided therein with a filter, and a tubular sliding portion that has a base end connected to a connection port provided on the main body case, that includes a suction port at its front end, and that is slidable in a front-rear direction, and includes therein a dust collection path formed to pass from the suction port through the filter to the air exhaust port. The connection port is provided on a side surface of the main body case, and connected to a flexible hose serving as a base end of the sliding portion, and a side surface of the dust box is provided with an inlet port communicating with the connection port.