公开(公告)号：US20220395972A1

公开(公告)日：2022-12-15

申请号：US17747555

申请日：2022-05-18

Applicant: MAKITA CORPORATION

Inventor： Hitoshi IIDA ,  Hikaru SUNABE ,  Masanori FURUSAWA

IPC: B25D16/00

Abstract: A power tool having a rotary hammer mechanism has a first motor; a driving mechanism configured to operate by power of the first motor in an action mode selected from a plurality of action modes including a first mode of at least rotationally driving a tool accessory and a second mode of only linearly driving the accessory; a tool holder configured to be rotationally driven by torque transmitted from the first motor; a second motor; a clutch member configured to transmit torque to the holder in a transmitting position and to interrupt the transmission in an interrupting position; and a transmitting mechanism configured to convert rotation of the second motor into linear motion and transmit the linear motion to the clutch member. When the tool body excessively rotates around the driving axis, the second motor moves the clutch member from the transmitting position via transmitting mechanism to interrupt the transmission.

公开(公告)号：US20220395971A1

公开(公告)日：2022-12-15

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：US20210114195A1

公开(公告)日：2021-04-22

申请号：US17072484

申请日：2020-10-16

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：US20240416471A1

公开(公告)日：2024-12-19

申请号：US18631902

申请日：2024-04-10

Applicant: MAKITA CORPORATION

Inventor： Hitoshi IIDA ,  Masanori FURUSAWA

IPC: B23Q11/00 ,  A47L5/22 ,  A47L7/00 ,  A47L9/28 ,  B25D17/20

Abstract: A self-suction dust collection attachment including a dust collection motor and a fan can be mechanically coupled and electrically connected to multiple types of power tools. A dust collection attachment attachable to a first power tool includes a casing, a suction portion, a dust collector that captures dust sucked through the suction portion, a fan that generates a suction force in the suction portion, a dust collection motor that rotates the fan, and an adapter attachable to at least a second power tool and detachably attachable to the casing. The adapter includes a mechanical coupler that couples the casing and the second power tool and an electrical connector that electrically connects the dust collection attachment and the second power tool when the dust collection attachment is coupled to the second power tool.

公开(公告)号：US20240033870A1

公开(公告)日：2024-02-01

申请号：US18224368

申请日：2023-07-20

Applicant: MAKITA CORPORATION

Inventor： Hajime TAKEUCHI ,  Hitoshi IIDA ,  Masanori FURUSAWA ,  Yoji INOUE

IPC: B23Q11/00 ,  B23B45/00 ,  B23B45/02

CPC classification number: B23Q11/0046 ,  B23Q11/0071 ,  B23B45/003 ,  B23B45/02

Abstract: A dust collecting attachment for an electric power tool includes dust collecting fans, a suctioning portion, and a dust collecting portion. The suctioning portion generates a suctioning force by rotation of the dust collecting fans. The dust collecting portion captures dust suctioned from the suctioning portion. When the dust collecting attachment is mounted to an electric power tool including a motor, a fan shaft of the dust collecting fans is connected to a rotation shaft that is disposed in the electric power tool and rotates in accordance with driving of the motor to allow the dust collecting fans to rotate integrally with the rotation shaft. The dust collecting fans are disposed in a plurality of stages in an axial direction of the fan shaft.

公开(公告)号：US20180099396A1

公开(公告)日：2018-04-12

申请号：US15724503

申请日：2017-10-04

Applicant: MAKITA CORPORATION

Inventor： Hitoshi IIDA ,  Masanori FURUSAWA ,  Kei WATANABE

IPC: B25D17/24 ,  B25D16/00 ,  B25D17/20 ,  F21V33/00 ,  B25D11/12

CPC classification number: B25D17/24 ,  B25D11/12 ,  B25D16/006 ,  B25D17/043 ,  B25D17/20 ,  B25D2211/003 ,  B25D2211/068 ,  B25D2216/0023 ,  B25D2216/0084 ,  B25D2250/095 ,  B25D2250/121 ,  B25D2250/245 ,  B25D2250/265 ,  B25D2250/371 ,  F21V33/00

Abstract: A power tool, such as a rotary hammer or hammer drill, includes a first housing that contains a motor and a drive mechanism for linearly reciprocally driving a tool accessory, and a second housing that includes a handle, a first portion and a second portion. At least one elastic element connects the first and second housings such that the handle is biased away from the first housing. A first set of sliding contact surfaces is defined on or connected to the first housing and the first portion of the second housing. A second set of sliding contact surfaces is defined on or connected to the first housing and the second portion of the second housing. The first and second sets of sliding contact surfaces are located on opposite sides of the motor such that the rotational axis of the motor intersects the first and second sets of sliding contact surfaces.

公开(公告)号：US20200306907A1

公开(公告)日：2020-10-01

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 ,  B01D46/44 ,  B01D46/42 ,  B23B45/02

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：US20180126534A1

公开(公告)日：2018-05-10

申请号：US15801731

申请日：2017-11-02

Applicant: MAKITA CORPORATION

Inventor： Hitoshi IIDA ,  Masanori FURUSAWA ,  Kei WATANABE ,  Takafumi KOTSUJI ,  Keisuke YAMADA

IPC: B25D11/12 ,  B25D16/00 ,  B25D17/24 ,  H02K7/14 ,  H01M2/10

CPC classification number: B25D11/12 ,  B23B49/003 ,  B23B2260/128 ,  B25D16/003 ,  B25D17/043 ,  B25D17/24 ,  B25D2211/003 ,  B25D2211/068 ,  B25D2216/0015 ,  B25D2216/0023 ,  B25D2216/0084 ,  B25D2250/121 ,  B25D2250/221 ,  B25D2250/265 ,  B25F5/02 ,  H01M2/1022 ,  H01M2/1094 ,  H01M2220/30 ,  H02K7/145

Abstract: A power tool includes a motor, a housing, a battery mounting part, and a battery protection part. The battery mounting part is provided to the housing on an opposite side from a working axis across the motor in an extending direction of a rotation axis of the motor. The battery mounting part is configured such that one end portion of at least one battery is mounted to the battery mounting part and an opposite end portion of the at least one battery in the extending direction of the rotation axis is exposed from the housing. The battery protection part is provided to an outer surface portion of the housing and configured to protect at least one corner region of the opposite end portion of the at least one battery against external force when the one end portion is mounted to the battery mounting part.

公开(公告)号：US20180099393A1

公开(公告)日：2018-04-12

申请号：US15724598

申请日：2017-10-04

Applicant: MAKITA CORPORATION

Inventor： Hitoshi IIDA ,  Masanori FURUSAWA

IPC: B25D16/00 ,  B25D17/20 ,  B25D17/24 ,  F21V33/00

CPC classification number: B25D16/006 ,  B25D11/00 ,  B25D17/043 ,  B25D17/20 ,  B25D17/24 ,  B25D2211/003 ,  B25D2211/068 ,  B25D2216/0015 ,  B25D2216/0023 ,  B25D2216/0038 ,  B25D2216/0084 ,  B25D2222/72 ,  B25D2250/095 ,  B25D2250/121 ,  B25D2250/265 ,  F21V33/00

Abstract: A power tool contains a brushless motor that includes a stator having a stack thickness and an outer diameter, a rotor having a diameter, and a motor shaft extending from the rotor and having a rotational axis. A drive mechanism is operably coupled to the motor shaft and is configured to drive a tool accessory in relation to a drive axis. A first housing houses the motor and the drive mechanism. The drive axis does not intersect the brushless motor, but the rotational axis of the motor shaft intersects the drive axis. The outer diameter of the stator is at least five times greater than the stack thickness. Furthermore, the diameter of the rotor is greater than the stack thickness.

公开(公告)号：US20240416470A1

公开(公告)日：2024-12-19

申请号：US18623421

申请日：2024-04-01

Applicant: MAKITA CORPORATION

Inventor： Hitoshi IIDA ,  Masanori Furusawa ,  Kei Watanabe

IPC: B23Q11/00 ,  A47L7/00 ,  A47L9/28 ,  B25D17/20

Abstract: A power tool and a dust collection attachment have their respective batteries as power supplies and can continue operating when one of the batteries is depleted. A dust collection system for a power tool includes a power tool including a switch, a tool-body DC motor, a tool-body controller, and a tool-body battery, and a dust collection attachment attachable to the power tool and including a suction portion, a dust collector, a fan, a dust-collector DC motor, a dust-collector controller, and a dust-collector battery. When the dust collection attachment is attached to the power tool, the tool-body controller and the dust-collector controller are electrically connected to each other. The dust-collector controller uses the tool-body battery singly to supply power to the tool-body DC motor and the dust-collector DC motor or uses the dust-collector battery singly to supply power to the tool-body DC motor and the dust-collector DC motor.