公开(公告)号：US09724814B2

公开(公告)日：2017-08-08

申请号：US14374508

申请日：2012-12-07

Applicant: MAKITA CORPORATION

Inventor： Kiyunobu Yoshikane ,  Yoshitaka Machida ,  Shinji Onoda ,  Hitoshi Iida

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

CPC classification number: B25D11/06 ,  B25D11/00 ,  B25D11/062 ,  B25D16/00 ,  B25D17/24 ,  B25D2211/003 ,  B25D2211/006 ,  B25D2217/0092 ,  B25D2250/095

Abstract: An impact tool performs a processing operation on a workpiece by carrying out an impact operation on a tool bit in a longitudinal axis direction. The impact tool includes a motor having a rotor and a stator, a tool main body housing the motor, a drive shaft parallel to a longitudinal axis of the tool bit and rotatably driven by the motor, and an oscillating member that is supported by the drive shaft and that carries out an oscillating movement in the axial direction of the drive shaft based on the rotational motion of the drive shaft. A tool drive mechanism is coupled to the oscillating member so that the oscillating movement of the oscillating member linearly moves the tool bit in the longitudinal axis direction. The motor is an outer rotor motor in which the rotor is disposed on an radially outer side of the stator.

公开(公告)号：US12251810B2

公开(公告)日：2025-03-18

申请号：US17747541

申请日：2022-05-18

Applicant: MAKITA CORPORATION

Inventor： Hitoshi Iida ,  Masanori Furusawa ,  Kei Watanabe

IPC: B25D16/00 ,  B25D17/04

Abstract: A power tool having a rotary hammer mechanism has a motor, a driving mechanism, a tool body that houses the motor and the driving mechanism, a handle having a grip part, and a first operation member. The driving mechanism is configured to operate by power of the motor in an action mode that is selected from a plurality of operation modes including a first mode of at least rotationally driving a tool accessory around a driving axis and a second mode of only linearly driving the tool accessory along the driving axis. The grip part extends in a direction crossing the driving axis and is configured to be held by a user. The first operation member is on the tool body and faces the grip part. The first operation member is configured to be manually operated by the user to change the action mode of the driving mechanism.

公开(公告)号：US11612993B2

公开(公告)日：2023-03-28

申请号：US16943263

申请日：2020-07-30

Applicant: MAKITA CORPORATION

Inventor： Hitoshi Iida

IPC: B25D16/00 ,  B25D17/04 ,  H02K7/14 ,  H02K11/33 ,  H02K11/28

Abstract: A hand-held impact tool includes a motor, a driving mechanism, a tool body, a main handle, a first detection part, a second detection part and a control part. The tool body is configured such that an auxiliary handle is removably attached thereto. The main handle is connected to the tool body. The first detection part is configured to detect selected one of a plurality of modes. The second detection part is configured to detect whether or not the auxiliary handle is attached to the tool body. The control part is configured to control operation of the impact tool based on detection results of the first detection part and the second detection part.

公开(公告)号：US11491598B2

公开(公告)日：2022-11-08

申请号：US16830455

申请日：2020-03-26

Applicant: MAKITA CORPORATION

Inventor： Hitoshi Iida ,  Yoshiro Tada ,  Hideki Tsuji ,  Taro Hisano

IPC: B23Q11/00 ,  A47L7/00 ,  B01D46/44 ,  B23B45/02 ,  B01D46/42

Abstract: A dust collecting system includes a power tool and a stationary dust collector. The power tool is configured to perform processing operation on a workpiece by driving a tool accessory. The stationary dust collector is configured to be placed separately from the power tool and to collect dust generated by the processing operation. The power tool includes a first motor and a driving mechanism configured to drive the tool accessory by power of the first motor. The dust collector includes a second motor and a fan configured to be rotationally driven by the second motor to generate air flow for collecting dust. The dust collecting system includes a control device configured to control a rotation speed of the second motor according to a driving state of the power tool.

公开(公告)号：US10919137B2

公开(公告)日：2021-02-16

申请号：US15909366

申请日：2018-03-01

Applicant: MAKITA CORPORATION

Inventor： Hitoshi Iida ,  Masanori Furusawa ,  Kei Watanabe

IPC: B25D16/00

Abstract: A work tool, in which any one of a plurality of operation modes is selectable and which is configured to operate according to the selected operation mode, includes a switch for driving a tool accessory, an operation member, a mode switching member and a movement restricting mechanism. The operation member is configured to be held in an off-position in a non-pressed state and configured to move to an on-position in response to an external pressing operation. The mode switching member is configured to be switched between a plurality of switching positions in response to an external operation, the switching positions respectively corresponding to the operation modes. The movement restricting mechanism is configured to restrict a movement of the operation member from the off-position to the on-position in interlock with a switching operation of the mode switching member.

公开(公告)号：US10913141B2

公开(公告)日：2021-02-09

申请号：US15946029

申请日：2018-04-05

Applicant: MAKITA CORPORATION

Inventor： Hitoshi Iida ,  Masanori Furusawa ,  Hirokatsu Yamamoto ,  Ryo Umemoto ,  Yoshinori Sasaki ,  Akira Naito

IPC: B25D17/24 ,  B25D16/00 ,  B25D17/04

Abstract: An impact tool includes a motor, a driving mechanism, and a vibration sensor. The driving mechanism is configured to perform a hammering operation of linearly driving a tool accessory along an impact-axis by power of the motor. The impact-axis extends in a front-rear direction of the impact tool. The vibration sensor is configured to detect vibrations. The vibration sensor is disposed such that the vibration sensor is capable of detecting vibrations of a first frequency among vibrations caused in the impact tool, and such that transmission of vibrations of a second frequency to the vibration sensor is suppressed. The vibrations of the first frequency result from the hammering operation. The second frequency is different from the first frequency.

公开(公告)号：US10751867B2

公开(公告)日：2020-08-25

申请号：US15727430

申请日：2017-10-06

Applicant: MAKITA CORPORATION

Inventor： Hitoshi Iida ,  Masanori Furusawa

IPC: B25D16/00 ,  B25D17/04 ,  H01H9/06

Abstract: A hammer drill includes a switch, an operation member, a lock member, a mode switching member and a linked member. The operation member is normally held in an OFF position and moves to an ON position in response to an external pressing operation. The lock member moves in response to an external operation between a locking position, where the lock member is capable of locking the operation member in the ON position, and a non-locking position, where the lock member is incapable of locking the operation member. The linked member moves to an allowing position for allowing a movement of the lock member when the mode switching member is switched to a switching position corresponding to a hammer mode, and moves to an inhibiting position for inhibiting the movement of the lock member when the mode switching member is switched to a switching position corresponding to a drill mode.

公开(公告)号：US20150041170A1

公开(公告)日：2015-02-12

申请号：US14374508

申请日：2012-12-07

Applicant: MAKITA CORPORATION

Inventor： Kiyunobu Yoshikane ,  Yoshitaka Machida ,  Shinji Onoda ,  Hitoshi Iida

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

CPC classification number: B25D11/06 ,  B25D11/00 ,  B25D11/062 ,  B25D16/00 ,  B25D17/24 ,  B25D2211/003 ,  B25D2211/006 ,  B25D2217/0092 ,  B25D2250/095

Abstract: An impact tool performs a processing operation on a workpiece by carrying out an impact operation on a tool bit in a longitudinal axis direction. The impact tool includes a motor having a rotor and a stator, a tool main body housing the motor, a drive shaft parallel to a longitudinal axis of the tool bit and rotatably driven by the motor, and an oscillating member that is supported by the drive shaft and that carries out an oscillating movement in the axial direction of the drive shaft based on the rotational motion of the drive shaft. A tool drive mechanism is coupled to the oscillating member so that the oscillating movement of the oscillating member linearly moves the tool bit in the longitudinal axis direction. The motor is an outer rotor motor in which the rotor is disposed on an radially outer side of the stator.

Abstract translation: 冲击工具通过对纵向轴线方向的工具钻进行冲击操作，对工件进行加工操作。 冲击工具包括具有转子和定子的电动机，容纳电动机的工具主体，平行于工具头的纵向轴线并由电动机驱动的驱动轴，以及由驱动器支撑的摆动部件 并且其基于驱动轴的旋转运动在驱动轴的轴向方向上进行摆动运动。 工具驱动机构联接到摆动构件，使得摆动构件的摆动运动在纵向轴线方向上直线地移动工具头。 电动机是外转子电动机，其中转子设置在定子的径向外侧。