公开(公告)号：US12162113B2

公开(公告)日：2024-12-10

申请号：US17273439

申请日：2019-09-06

Applicant: MAKITA CORPORATION

Inventor： Takashi Matsubara ,  Shunpei Yamaji ,  Akira Mizutani ,  Ryosuke Otani ,  Hiroki Kaneko

IPC: B24B23/00 ,  B24B23/02 ,  B24B55/05 ,  B25F5/02

Abstract: A power tool, such as a grinder, may include: a prime mover such as a motor; a power-transmission mechanism operably connected to the prime mover; a housing that houses the prime mover and the power-transmission mechanism; and a tool-accessory retaining part for holding a tool accessary. The tool-accessory retaining part is operably connected to the power-transmission mechanism. An accessory is mounted on the housing in a detachable manner. A link member moves in response to mounting and demounting of the accessory. A detection sensor is housed in an interior of the housing and includes a non-contact sensor device. The detection sensor is configured to detect movement of the link member using the non-contact sensor device.

公开(公告)号：US12157218B2

公开(公告)日：2024-12-03

申请号：US18233483

申请日：2023-08-14

Applicant: MAKITA CORPORATION

Inventor： Kihiro Kusumoto ,  Kenji Abe

IPC: B25F5/00 ,  B25F5/02

Abstract: A power tool includes a motor including a stator and a rotor rotatable relative to the stator about a rotation axis, a gear drivable in response to rotation of the rotor, a motor compartment accommodating the motor, a rear cover covering a rear opening in the motor compartment, a gear case accommodating the gear and covering a front opening in the motor compartment, a first screw fastening the rear cover and the motor compartment together, and a second screw fastening the motor compartment and the gear case together, and at a different position from the first screw in a plane orthogonal to the rotation axis.

公开(公告)号：US20240395260A1

公开(公告)日：2024-11-28

申请号：US18650427

申请日：2024-04-30

Applicant: MAKITA CORPORATION

Inventor： Fumitoshi NUMATA ,  Koichi YAKABE ,  Takumi HAYASHI

IPC: G10L17/22 ,  B25F5/00 ,  G10L17/06 ,  H04R1/10 ,  H05B47/175

Abstract: A power tool system includes at least one controlled device including a power tool, and a voice control device configured to wirelessly communicate with the at least one controlled device. The voice control device includes a at least one first processor configured to control operation of the at least one controlled device. The at least one first processor is configured to acquire voice data, and to control operation of the power tool in accordance with a command relating to the operation of the power tool and identified based on the voice data.

公开(公告)号：US12155294B2

公开(公告)日：2024-11-26

申请号：US17632949

申请日：2020-06-19

Applicant: MAKITA CORPORATION

Inventor： Akira Niwa

IPC: H02K7/14 ,  H02K1/14 ,  H02K3/18 ,  H02K7/00 ,  B25F5/02

Abstract: An electric work machine includes: a motor having a rotor disposed in an interior of a stator and being rotatable about a rotational axis; and an output shaft, on which a tool accessory is mountable and which is configured to be driven using motive power output from the motor. The stator includes: a stator core; a coil wound on a portion of the stator core; and a fusing terminal disposed more inward in a radial direction of the stator core than the coil and being connected to the coil.

公开(公告)号：US12155078B2

公开(公告)日：2024-11-26

申请号：US17036435

申请日：2020-09-29

Applicant: MAKITA CORPORATION

Inventor： Tatsuya Nagahama

IPC: H01M10/42 ,  H01M50/10 ,  H01M50/213 ,  H01M50/30 ,  H01M50/543 ,  H01M50/572

Abstract: A battery pack (2; 602) includes: an outer case (12; 612), which comprises an upper-part case (14) and a lower-part case (15; 615) fixed to the upper-part case (14); at least one battery cell (90a-90j); and a cell case (80), which houses the battery cell(s) (90a-90j). A clearance (C11-C13) is provided between the lower-part case (15; 615) and the entire lower surface of the cell case (80).

公开(公告)号：US12151390B2

公开(公告)日：2024-11-26

申请号：US17950381

申请日：2022-09-22

Applicant: MAKITA CORPORATION

Inventor： Hideki Kachi ,  Tsunahisa Nakamura

IPC: B27B17/02 ,  B27B17/00

Abstract: The description herein discloses a chainsaw, which may include: a saw chain; a guide bar equipped with the saw chain; a sprocket for running the saw chain along a periphery of the guide bar; a motor including an output shaft connected to the sprocket; a cooling fan connected to the output shaft; and a base member for holding the guide bar. The base member may be constituted of a heat conductive material having a thermal conductivity of 10 W/m·K or more when a temperature of the heat conductive material is 300 K. The base member may include: a plate portion arranged such that the plate portion faces the motor in a direction along the output shaft; and a rib portion protruding from the plate portion toward the motor.

公开(公告)号：US20240383162A1

公开(公告)日：2024-11-21

申请号：US18655841

申请日：2024-05-06

Applicant: Makita Corporation

Inventor： Kazuya Kato

IPC: B26B15/00

Abstract: A working machine may include a working unit, a prime mover configured to drive the working unit, a housing that supports the working unit and houses the prime mover, a trigger lever extending through a through hole defined in the housing so as to be located inside and outside the housing and configured to be manipulated by a user, a sensor configured to detect a movement of the trigger lever, and a control unit configured to control the prime mover based on a detection result by the sensor. The trigger lever may be rotatably supported by the housing via a rotation shaft. The trigger lever may include a block portion that has a shape of a substantially solid of revolution about a rotation axis of the trigger lever. A peripheral edge of the through hole may include a facing edge that faces an outer circumferential surface of the block portion.

公开(公告)号：US12145249B2

公开(公告)日：2024-11-19

申请号：US17987998

申请日：2022-11-16

Applicant: MAKITA CORPORATION

Inventor： Takahiro Kawakami ,  Yu Eto

IPC: B25F5/00 ,  B25F5/02

Abstract: A power tool effectively isolates vibration with an auxiliary handle having no structure for isolating vibration. A power tool to which an auxiliary handle is attachable includes a housing, a nut held on a side surface of the housing to be screwed with the auxiliary handle, and an elastic member between the housing and the nut.

公开(公告)号：US12138753B2

公开(公告)日：2024-11-12

申请号：US18325313

申请日：2023-05-30

Applicant: MAKITA CORPORATION

Inventor： Kazuma Aoki ,  Tomoro Aoyama

IPC: B25B21/02

Abstract: An impact tool (1) includes: a motor (6) having a rotor (27) that is rotatable about a rotational axis (AX); a spindle (8) disposed forward of the stator and rotating when the rotor rotates; an anvil (10) having at least a portion disposed forward of the spindle and mounting a bit (300); a hammer (47), which rotatably impacts the anvil; and a housing (2), which has a motor-housing part (21) that houses the motor. The maximum tightening torque is 140 N·m or more. Overall length (La), which is the distance—in the front-rear direction parallel to the rotational axis—between a rear-end portion of the motor-housing part and a front-end portion of the anvil, is 100 mm or less. Center height Hc, which is the distance in the up-down direction between the rotational axis and an upper-end portion of the motor-housing part, is 29 mm or less.

公开(公告)号：US12138752B2

公开(公告)日：2024-11-12

申请号：US18139763

申请日：2023-04-26

Applicant: MAKITA CORPORATION

Inventor： Kazuma Aoki ,  Tomoro Aoyama

IPC: B25B21/02

Abstract: To improve operability it is desireable to decrease the size of an impact tool. The impact tool includes a motor, a spindle including a spindle shaft and a flange. An anvil of the tool includes an anvil shaft and an anvil projection. A hammer of the tool includes a base surrounding the spindle shaft, a front ring protruding frontward from an outer circumference of the base, and a hammer projection to strike the anvil projection in a rotation direction. The base has a groove at a boundary with the hammer projection. One of ordinary skill in the art would appreciate that the arrangement disclosed herein results in space savings that allows for overall decrease in the size of an impact too.