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公开(公告)号：US20220168869A1
公开(公告)日：2022-06-02
申请号：US17504109
申请日：2021-10-18
Applicant: MAKITA CORPORATION
Inventor： Shogo TOMINAGA , Manabu SUGIMOTO , Yuji SAKAKIBARA
Abstract: A screwdriver compact in a front-rear direction includes a motor including a stator and a rotor including a rotor shaft extending upward frontward, a switch, a pinion, a clutch operable with the pinion, a bit holder movable in the front-rear direction in front of the clutch, a gear housing accommodating the pinion and the clutch and including front and rear divided parts, a motor housing joined to the gear housing and accommodating the motor, and a resin grip joined to the motor housing and accommodating the switch. The bit holder at a rearward position causes the clutch to be connecting to transmit rotation of the rotor and at a frontward position causes the clutch to be disconnecting to transmit no rotation of the rotor.
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公开(公告)号：US11331783B2
公开(公告)日：2022-05-17
申请号：US16819678
申请日：2020-03-16
Applicant: MAKITA CORPORATION
Inventor： Kazuya Tanaka , Hironori Ogura
IPC: B25F3/00 , B25F5/02 , H02J50/80 , B25F5/00 , G05B13/02 , H01M50/256 , H04Q9/00 , H01R33/94 , H02J7/00
Abstract: A communication adapter attachment device in one aspect of the present disclosure is provided in a working machine, and includes an adapter housing portion, a cap, and a cap-side interface. The cap-side interface is configured to enable viewing of the adapter-side interface and/or an input operation to the adapter-side interface from outside of the working machine, in a state in which the communication adapter is accommodated in the adapter housing portion and the opening is closed with the cap.
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公开(公告)号：US11331732B2
公开(公告)日：2022-05-17
申请号：US16852613
申请日：2020-04-20
Applicant: MAKITA CORPORATION
Inventor： Toshiyuki Kani , Hiromu Goto , Kenji Hamada , Masaki Murakami
Abstract: Twisting of a locking member due to cogging torque is reduced without lowering the locking and unlocking operability for a user. A power tool includes a housing, an electric motor located inside the housing and including a permanent magnet, a shaft rotatable about an axis relative to the housing to transmit power from the electric motor, a locking member movable between a lock position and an unlock position in a nonenergized state of the electric motor and engageable with the shaft at the lock position to lock rotation of the shaft, and an abutting member that applies, to the locking member at the lock position, a force in a direction opposite to an axial torque caused by the permanent magnet and applied to the locking member.
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公开(公告)号：US20220142434A1
公开(公告)日：2022-05-12
申请号：US17582647
申请日：2022-01-24
Applicant: MAKITA CORPORATION
Inventor： Hitoshi SUZUKI
Abstract: A dust collector in one aspect of the present invention comprises a dust collection portion, a communication portion, and an interlock operation control portion. When the communication portion receives an interlock command transmitted from an electric working machine, the interlock operation control portion makes the dust collection portion operate interlocking with the electric working machine. The interlock operation control portion includes a storage portion, in which identification information specific to the electric working machine with which the dust collection portion is to be made to perform the interlock operation is stored.
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公开(公告)号：US11325228B2
公开(公告)日：2022-05-10
申请号：US15948003
申请日：2018-04-09
Applicant: MAKITA CORPORATION
Inventor： Takaaki Osada , Hirokatsu Yamamoto , Goshi Ishikawa , Kunihisa Shima
IPC: B25B21/00 , B25F5/00 , B25B21/02 , B25B23/147
Abstract: A rotary impact tool in one aspect of the present disclosure includes a motor, an impact mechanism, an impact detector, and a controller. The controller executes constant duty ratio control from when the motor is started until an impact is detected by the impact detector. The controller executes constant rotation speed control in response to detection of an impact by the impact detector.
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Patent Agency Ranking
公开(公告)号：US20220134528A1
公开(公告)日：2022-05-05
申请号：US17513553
申请日：2021-10-28
Applicant: MAKITA CORPORATION
Inventor： Takafumi KOTSUJI , Shin NAKAMURA , Akira MIZUTANI , Masatoshi NAKAHAMA , Yoshihiro OZEKI
IPC: B25F5/00
Abstract: A power tool includes a motor, a spindle, an inner housing, an outer housing formed by an upper member and a lower member, a pair of interposing members and a pair of elastic members. The interposing members are arranged leftward and rightward of the inner housing, respectively, and fixedly connected to a first member, which is one of the upper member and the lower member, and at least partially in contact with an inner surface of the first member. The elastic members are held between a left portion of the inner housing and one of the interposing members and between a right portion of the inner housing and the other of the interposing members, respectively. A first end portion of each of the interposing members has at least one first surface extending to be closer to the inner housing toward a tip end of the first end portion.
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公开(公告)号：US11316228B2
公开(公告)日：2022-04-26
申请号：US15371428
申请日：2016-12-07
Applicant: MAKITA CORPORATION
Inventor： Hidekazu Hayashi , Hideyuki Taga
IPC: H01M2/20 , H01M50/213 , H01M50/116 , H01M50/502 , H01M10/04 , H01M10/0525
Abstract: A battery pack includes a battery cell case, a plurality of battery cells accommodated in the battery cell case, a plurality of lead plates connected to the battery cells, arranged on a same side surface of the battery cell case, and arranged to be separated from each other, and one or more insulation sheets. A first insulation sheet included in the one or more insulation sheets is adhered to a surface of a first lead plate so as to cover the first lead plate at least partially and not to cover lead plates other than the first lead plate.
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公开(公告)号：US11311157B2
公开(公告)日：2022-04-26
申请号：US16458263
申请日：2019-07-01
Applicant: MAKITA CORPORATION
Inventor： Yasutoshi Shinma , Akinori Ito
Abstract: An electric motor serving as a drive source of a dust collection mechanism 20 is arranged such that a motor axis line of the electric motor is tilted with respect to a base portion of a main body case. Because of this configuration, a main body is made to be compact in the front-to-rear direction, in comparison to a configuration where the motor axis line of the electric motor is disposed parallel to the base portion.
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公开(公告)号：US11305393B2
公开(公告)日：2022-04-19
申请号：US16869630
申请日：2020-05-08
Applicant: MAKITA CORPORATION
Inventor： Yoshitaka Machida
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.
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公开(公告)号：US20220111497A1
公开(公告)日：2022-04-14
申请号：US17464958
申请日：2021-09-02
Applicant: MAKITA CORPORATION
Inventor： Yuya SANO , Yuki MURAI , Nobuaki SHIKATA
Abstract: An impact wrench (1) includes: a brushless motor (11); a hammer (17) disposed frontward of, and driven by, the brushless motor; and a hammer case (16), which houses the hammer. An anvil (4) of the impact wrench includes: an arm portion (25) disposed frontward of the hammer and configured to be impacted (struck) in a rotational direction by the hammer; a cylindrical portion (30) connected to the arm portion and supported by the hammer case; a square-column portion (31) disposed frontward of the cylindrical portion; and an enlarged portion (35) disposed between the cylindrical portion and the square-column portion and enlarging in a direction extending rearward from the square-column portion. A recessed portion (37) is continuous in a circumferential direction of the cylindrical portion and is disposed between the cylindrical portion and the enlarged portion of the anvil.
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