公开(公告)号：US20230415321A1

公开(公告)日：2023-12-28

申请号：US18201312

申请日：2023-05-24

Applicant: MAKITA CORPORATION

Inventor： Yoshitaka MACHIDA ,  Taro HISANO ,  Kazuki NAKAGAWA

IPC: B25D16/00 ,  B25D17/04

CPC classification number: B25D16/006 ,  B25D17/043 ,  B25D2211/061

Abstract: A power tool having a hammer mechanism has a tool body that houses a motor and a driving mechanism and extends in a front-rear direction; a handle including a grip part that extends in an up-down direction orthogonal to the front-rear direction behind the tool body and has a lower end formed as a free end and is arranged below the driving axis; and a plurality of biasing members configured to elastically connect the tool body and the handle. The biasing members include at least one first biasing member arranged above the driving axis in the up-down direction, and at least one second biasing member arranged below the driving axis in the up-down direction. In this power tool, a biasing force of the at least one second biasing member is larger than a biasing force of the at least one first biasing member.

公开(公告)号：US20230160223A1

公开(公告)日：2023-05-25

申请号：US17987313

申请日：2022-11-15

Applicant: MAKITA CORPORATION

Inventor： Yoshitaka MACHIDA

IPC: E04G21/12

CPC classification number: E04G21/123

Abstract: A rebar tying tool may include: a reel including a bobbin and a wire wound around the bobbin, wherein the bobbin includes a detection target portion; a reel attaching part to which the reel is rotatably attached; a feeding unit configured to feed the wire from the bobbin around rebars; a twisting unit configured to twist the wire around the rebars; a plurality of detectors configured to detect the detection target portion; and a support supporting the reel attaching part, the feeding unit, the twisting unit, and the plurality of detectors. The plurality of detectors may be disposed along a rotation direction of the reel and configured to detect the detection target portion as the reel rotates.

公开(公告)号：US20230071871A1

公开(公告)日：2023-03-09

申请号：US17986369

申请日：2022-11-14

Applicant: MAKITA CORPORATION

Inventor： Kiyonobu YOSHIKANE ,  Yoshitaka MACHIDA ,  Hitoshi IIDA ,  Kazuki NAKAGAWA

IPC: B25D16/00 ,  B25D11/06 ,  B25D17/24 ,  B25D11/10

Abstract: A power tool, such as a rotary hammer, includes a housing, an output shaft for mounting a tool accessary and a motor having a motor shaft that generates a rotational output for rotating and linearly hammering the output shaft. The rotational output of the motor shaft is coupled to the output shaft via a driving mechanism that includes a hammer mechanism. An intervening member is axially movable relative to the motor shaft and is operably coupled between the motor shaft and the hammer mechanism. The hammer mechanism and the output shaft are supported by a movable support that is axially movable relative to the housing. Because the output shaft and the driving mechanism are movable relative to the motor and the housing, which preferably includes handle, via the intervening member and the movable support during hammering operations, vibration generated during hammering operations can be dampened before reaching the housing.

公开(公告)号：US20220410282A1

公开(公告)日：2022-12-29

申请号：US17752360

申请日：2022-05-24

Applicant: MAKITA CORPORATION

Inventor： Kiyonobu YOSHIKANE ,  Yoshitaka MACHIDA ,  Kazuki NAKAGAWA

IPC: B23B45/02 ,  F16D55/02 ,  B25F5/00

Abstract: A power tool comprises a motor, a final output shaft, a tool body, a detection device, and a braking device. The motor has a motor body including a stator and a rotor, and a motor shaft extending from the rotor and being rotatable around a first rotational axis. The final output shaft is configured to be rotationally driven around a second rotational axis by torque transmitted from the motor shaft. The tool body houses the motor and the final output shaft. The detection device is configured to detect a locking state of the final output shaft. The braking device is configured to directly act on the motor shaft to brake the motor shaft in response to detection of the locking state.

公开(公告)号：US20220281092A1

公开(公告)日：2022-09-08

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

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.

公开(公告)号：US20220266432A1

公开(公告)日：2022-08-25

申请号：US17668036

申请日：2022-02-09

Applicant: MAKITA CORPORATION

Inventor： Kiyonobu YOSHIKANE ,  Yoshitaka MACHIDA ,  Taro HISANO ,  Kazuki NAKAGAWA

IPC: B25D16/00 ,  B25F5/02

Abstract: A movable support at least partially supports a final output shaft and a driving mechanism, and is integrally movable relative to a housing in an axial direction of a driving axis. A biasing member biases the movable support toward a front side in the axial direction. A first guide shaft extends in the axial direction and slidably guides the movement of the movable support in the axial direction. At least one intermediate shaft rotates in response to rotation of a motor shaft and transmit power of the motor to the driving mechanism. At least one bearing supports an end portion of the at least one intermediate shaft is located in the front side in the axial direction. A single metal support is immovable relative to the housing and supports the at least one bearing. The single metal support has a first hole for partially receiving the first guide shaft.

公开(公告)号：US20220258319A1

公开(公告)日：2022-08-18

申请号：US17567970

申请日：2022-01-04

Applicant: MAKITA CORPORATION

Inventor： Yoshitaka MACHIDA ,  Kiyonobu YOSHIKANE

IPC: B25D16/00

Abstract: An impact tool includes a housing; and a motor, a tubular tool holder, a driving mechanism, a rotation shaft, a driving mechanism housing region inside the housing. The tool holder has a distal end on which a bit is mountable. The driving mechanism is configured to hammer the bit. The rotation shaft is disposed in the driving mechanism and rotates by a rotation of an output shaft of the motor. The driving mechanism housing region houses the driving mechanism in a sealed state inside the housing. The air escape path that releases air inside the driving mechanism housing region to outside of the driving mechanism housing region is formed inside the rotation shaft while an inlet of the air escape path is formed on an outer peripheral surface of the rotation shaft.

公开(公告)号：US20200306945A1

公开(公告)日：2020-10-01

申请号：US16830375

申请日：2020-03-26

Applicant: MAKITA CORPORATION

Inventor： Kiyonobu YOSHIKANE ,  Yoshitaka MACHIDA ,  Hitoshi IIDA

IPC: B25D11/00 ,  B25D16/00 ,  B25D17/20 ,  B23Q11/00

Abstract: A dust collecting system includes a power tool and a dust collector. The power tool includes at least one battery-mounting part, a first motor, a driving mechanism and a body housing. The at least one battery-mounting part is each configured to removably receive a battery. The first motor is configured to operate with electric power supplied from the battery. The driving mechanism is configured to drive the tool accessory by power of the first motor. The body housing houses the first motor and the driving mechanism. The dust collecting system includes a control device configured to control operation of at least one of the power tool and the dust collector according to a state of the whole dust collecting system.

公开(公告)号：US20190291255A1

公开(公告)日：2019-09-26

申请号：US16298409

申请日：2019-03-11

Applicant: MAKITA CORPORATION

Inventor： Kiyonobu YOSHIKANE ,  Yoshitaka MACHIDA ,  Taro HISANO ,  Hirokatsu YAMAMOTO

IPC: B25D17/24 ,  B25D16/00

Abstract: A work tool includes a motor, a driving mechanism, a housing, a handle, a detecting mechanism and an elastic support part. The detecting mechanism is configured to detect information corresponding to an operating state of the work tool. The elastic support part supports the detecting mechanism so as to be movable relative to the housing in at least two of a front-rear direction, an up-down direction and a left-right direction. The elastic support part includes at least one elastic member disposed between the detecting mechanism and the housing. The elastic support part has respectively different spring constants in the at least two directions.

公开(公告)号：US20170232565A1

公开(公告)日：2017-08-17

申请号：US15118263

申请日：2015-02-17

Applicant: MAKITA CORPORATION

Inventor： Yoshitaka MACHIDA

IPC: B23Q11/00 ,  B25F5/00

Abstract: To provide an improved technique for improving operability in an operation using a power tool with a dust collector attached thereto, a hammer drill to which a dust collector is attached has a body and a handle. The dust collector has a dust collecting part and a male plug. The dust collector is attached to the hammer drill by connecting the male plug to the handle of the hammer drill.