公开(公告)号：US20240416469A1

公开(公告)日：2024-12-19

申请号：US18618608

申请日：2024-03-27

Applicant: MAKITA CORPORATION

Inventor： Hitoshi IIDA ,  Masanori Furusawa

IPC: B23Q11/00 ,  B25D17/20

Abstract: A dust collection system for a power tool includes a power tool including an AC motor drivable with a switch and a tool-body power path extending from utility power to the AC motor, and a dust collection attachment attachable to the power tool to collect dust produced by the power tool in use and including a suction portion, a dust collector, a fan, a DC motor, a battery pack, and a dust-collector power path extending from the battery pack to the DC motor and electrically separate from the tool-body power path with the dust collection attachment attached to the power tool. The power tool includes a responsive unit that drives the DC motor in response to an operation on the switch with the responsive unit electrically separate from a signal path of the switch.

公开(公告)号：US20220402083A1

公开(公告)日：2022-12-22

申请号：US17734604

申请日：2022-05-02

Applicant: MAKITA CORPORATION

Inventor： Hitoshi IIDA ,  Masanori FURUSAWA ,  Kei WATANABE

IPC: B23Q11/00 ,  A47L7/00 ,  A47L9/24

Abstract: A dust collection system for a power tool can collect, with an ordinary bit, dust with a flexible hose connected. A dust collection system for a power tool includes a power tool to receive a tip tool protruding frontward and including a tool body, a cylindrical first dust collection attachment attachable to the tool body and covering the tip tool over its entire circumference with the first dust collection attachment being attached, a second dust collection attachment attachable to the tool body and including a dust collector, and a flexible hose to connect the first dust collection attachment and the second dust collection attachment to collect dust sucked through the first dust collection attachment into the dust collector included in the second dust collection attachment.

公开(公告)号：US20220266438A1

公开(公告)日：2022-08-25

申请号：US17588810

申请日：2022-01-31

Applicant: MAKITA CORPORATION

Inventor： Yoshitaka MACHIDA ,  Hitoshi IIDA ,  Taro HISANO

IPC: B25F5/00 ,  B25D16/00

Abstract: An electric power tool includes a motor, a driving side member, and a driven side member. The driving side member and the driven side member have mutually opposed surfaces. A plurality of cam teeth are respectively disposed on concentric circles on the opposed surfaces. The plurality of cam teeth have meshing surfaces inclined at predetermined lead angles. A torque limiter is formed to disengage the engagement of the meshing surfaces of the cam teeth by moving the one member in a separation direction from the other member when load of the driven side member increases. The respective cam teeth are formed such that the lead angles of the meshing surfaces are different between a forward rotation side and a reverse rotation side. A transmission torque transmitted from the driving side member to the driven side member is equal between the forward rotation and the reverse rotation.

公开(公告)号：US20210039240A1

公开(公告)日：2021-02-11

申请号：US16943263

申请日：2020-07-30

Applicant: MAKITA CORPORATION

Inventor： Hitoshi IIDA

IPC: B25D17/04 ,  B25D16/00 ,  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：US20180297186A1

公开(公告)日：2018-10-18

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：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：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：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：US20200306904A1

公开(公告)日：2020-10-01

申请号：US16831343

申请日：2020-03-26

Applicant: MAKITA CORPORATION

Inventor： Hitoshi IIDA ,  Yoshiro TADA ,  Hideki TSUJI ,  Taro HISANO

IPC: B23Q11/00 ,  B23Q15/08

Abstract: A dust collecting system includes a power tool and a dust collector. The power tool is configured to perform processing operation on a workpiece by driving a tool accessory. The dust collector is configured 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 first 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：US20180099395A1

公开(公告)日：2018-04-12

申请号：US15727430

申请日：2017-10-06

Applicant: MAKITA CORPORATION

Inventor： Hitoshi IIDA ,  Masanori FURUSAWA

IPC: B25D16/00 ,  H01H9/06

CPC classification number: B25D16/006 ,  B25D17/043 ,  B25D2216/0015 ,  B25D2216/0023 ,  B25D2216/0038 ,  B25D2250/261 ,  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.