公开(公告)号：US20240058926A1

公开(公告)日：2024-02-22

申请号：US18220492

申请日：2023-07-11

Applicant: MAKITA CORPORATION

Inventor： Ryuki YUEDA

IPC: B25B21/00 ,  B25F5/00 ,  B25F5/02

CPC classification number: B25B21/00 ,  B25F5/001 ,  B25F5/008 ,  B25F5/02

Abstract: A screwdriver is less likely to have an increased overall length. A screwdriver includes a motor, a push-in clutch located frontward from the motor, the push-in clutch being drivable by the motor, a spindle located frontward from the push-in clutch, the spindle being drivable by the push-in clutch, a push-in sensor located radially outward from and below the push-in clutch, the push-in sensor being configured to detect the push-in clutch being pushed in, and a battery configured to power the motor.

公开(公告)号：US20240055958A1

公开(公告)日：2024-02-15

申请号：US18267607

申请日：2021-12-15

Applicant: MAKITA CORPORATION

Inventor： Tsubasa YAGI ,  Hidekazu SUDA ,  Shunpei YAMAJI

IPC: H02K11/33 ,  B25F5/00

CPC classification number: H02K11/33 ,  B25F5/008 ,  H02K2211/03

Abstract: An electric work machine includes a motor, a circuit board, a case, at least one elastic member, and a filler. The circuit board includes a heat generating element mounted thereon, and the heat generating element generates heat due to the motor being driven. The case includes a heat dissipation part thermally coupled to the heat generating element and houses the circuit board therein. The at least one elastic member is placed between the circuit board and the case, and is housed inside the case. The filler is filled inside the case and fixes the circuit board and the at least one elastic member inside the case.

公开(公告)号：US11897111B2

公开(公告)日：2024-02-13

申请号：US17740503

申请日：2022-05-10

Applicant: MAKITA CORPORATION

Inventor： Yasumasa Nakane ,  Luyen Van Tong

IPC: B25F5/00 ,  B24B23/04 ,  B26B7/00 ,  B25F1/02 ,  B25F3/00 ,  B25F5/02

CPC classification number: B25F5/001 ,  B24B23/04 ,  B25F1/02 ,  B25F3/00 ,  B25F5/02 ,  B26B7/00

Abstract: A power tool has a motor having a rotary shaft, an eccentric shaft configured to be rotated around a rotation center axis of the rotary shaft, and a balancer configured to rotate with the rotary shaft. When viewed along the rotation center axis, (1) a first imaginary line passes the rotation center axis and an eccentric axis, (2) an imaginary perpendicular line crosses perpendicularly to the first imaginary line and passes the rotation center axis, (3) a center of gravity of the balancer is located in a region on a side opposite to the eccentric axis across the imaginary perpendicular line; and (4) a second imaginary line passes the rotation center axis and the center of gravity of the balancer and (5) the second imaginary is inclined at an inclination angle larger than 0° and smaller than 90° in a direction opposite to a rotating direction of the rotary shaft.

公开(公告)号：US20240048027A1

公开(公告)日：2024-02-08

申请号：US18380765

申请日：2023-10-17

Applicant: MAKITA CORPORATION

Inventor： Ryosuke HARA ,  Tomohiro UKAI

IPC: H02K7/14 ,  B23D49/16 ,  H02K7/075 ,  H02K7/04 ,  B26D5/14 ,  F16H21/18 ,  H02K9/06 ,  B23B45/00 ,  B23B45/02

CPC classification number: H02K7/145 ,  B23D49/16 ,  H02K7/075 ,  H02K7/04 ,  B26D5/14 ,  F16H21/18 ,  H02K9/06 ,  B23B45/001 ,  B23B45/02 ,  H02K5/207

Abstract: A reciprocating tool includes a motor, a reciprocating member, and a crank mechanism. The motor is disposed in a housing. The reciprocating member projects from the housing. The crank mechanism converts rotation of a rotation shaft of the motor into reciprocation of the reciprocating member. The crank mechanism rotates around an axis in a lateral direction by rotation transmission from the rotation shaft, and the crank mechanism includes a crank member having an eccentric pin, a connecting rod coupling the eccentric pin to the reciprocating member, and a balancer coupled to the eccentric pin, and the balancer is supported by the eccentric pin alone in the housing.

公开(公告)号：US11890730B2

公开(公告)日：2024-02-06

申请号：US17806163

申请日：2022-06-09

Applicant: MAKITA CORPORATION

Inventor： Yuta Araki ,  Akira Ito

IPC: B25B23/14 ,  B25B23/147 ,  B25B21/02 ,  B25D16/00 ,  B25B21/00

CPC classification number: B25B23/1475 ,  B25B21/007 ,  B25B21/023 ,  B25D16/006 ,  B25D2216/0084

Abstract: A driver drill includes a motor housing that holds an electric motor, an axis of rotation of a rotor of the electric motor extending in a front-rear direction of the driver drill, a grip housing having an upper end connected to a lower part of the motor housing and an enlarged-part housing connected to a lower end of the grip housing and spaced from the motor housing in an up-down direction of the driver drill that is perpendicular to the front-rear direction. A torque setting of the driver drill is changeable, and the driver drill is changeable between a setting unlocked state in which the torque setting is changeable and a setting locked state in which the torque setting is not changeable.

公开(公告)号：US11872682B2

公开(公告)日：2024-01-16

申请号：US17363487

申请日：2021-06-30

Applicant: MAKITA CORPORATION

Inventor： Tomoki Takata ,  Katsumi Okouchi ,  Takuji Kimura

IPC: B25F5/02 ,  B24B23/04

CPC classification number: B25F5/02 ,  B24B23/04

Abstract: A portable power tool includes a first handle extending in an elongated manner and configured to be held by a user, an electric motor, a tool accessory that undergoes orbital and/or rotational motion in response to generation of a rotational driving force by the electric motor, and a battery mounting part configured to detachably attach a battery that serves as a power source for the electric motor. The battery mounting part includes an upward mounting surface on which the battery is mountable, and at least one terminal configured to be electrically connected to the battery when a surface of the battery that includes a connection interface is placed on the mounting surface. The mounting surface is located at a position different from the first handle in the front-rear direction, and is located below an upper side of the first handle in the up-down direction.

公开(公告)号：US11872668B2

公开(公告)日：2024-01-16

申请号：US17374305

申请日：2021-07-13

Applicant: MAKITA CORPORATION

Inventor： Chitphong Kuntheeya

IPC: B24B23/03 ,  B24B41/047 ,  B24B23/04 ,  B24B47/10

CPC classification number: B24B23/03 ,  B24B23/04 ,  B24B41/0475 ,  B24B47/10

Abstract: A portable power tool includes an electric motor having a motor shaft, an output shaft arranged in parallel to the motor shaft and configured to be driven by rotation of the motor shaft, a tool accessory operably connected to the output shaft and configured to undergo an orbital and/or rotational motion in response to rotation of the output shaft, a first bearing that rotatably supports the output shaft, and a second bearing that rotatably supports the output shaft and is arranged closer to the tool accessory than the first bearing in an axial direction in which the output shaft extends. The first and second bearings are arranged at positions that do not overlap with a radially outermost one of components of the electric motor when viewed in a shaft arrangement direction in which the motor shaft and the output shaft are arranged in parallel.

公开(公告)号：US20240009823A1

公开(公告)日：2024-01-11

申请号：US18211009

申请日：2023-06-16

Applicant: MAKITA CORPORATION

Inventor： Hajime TAKEUCHI ,  Yoji INOUE ,  Masanori FURUSAWA

IPC: B25D16/00

CPC classification number: B25D16/006 ,  B25D2211/068 ,  B25D2216/0015 ,  B25D2216/0023 ,  B25D2216/0084 ,  B25D2250/121

Abstract: A rotary hammer includes a tool body, a tool holder, a cylinder, and a coupling member. The tool holder has a tubular shape and a longitudinal axis. The tool holder is configured to hold a tool accessory to be movable along the longitudinal axis and is supported by the tool body to be rotatable around the longitudinal axis. The cylinder extends coaxially with the tool holder and is supported by the tool body to be rotatable around the longitudinal axis. The coupling member is between the tool holder and the cylinder in a radial direction of the tool holder and is engaged with the tool holder and the cylinder to couple the tool holder and the cylinder together such that the tool holder and the cylinder integrally rotate.

公开(公告)号：US20240003503A1

公开(公告)日：2024-01-04

申请号：US18196557

申请日：2023-05-12

Applicant: MAKITA CORPORATION

Inventor： Kazunori TSUGE

IPC: F21L4/02

CPC classification number: F21L4/02

Abstract: To efficiently illuminate a wide area, an illumination apparatus includes a housing, a light emitter, and a light-transmissive member supported by the housing. The housing has an outer surface including a first outer surface and a second outer surface adjacent to the first outer surface. The second outer surface faces in a direction different from a direction in which the first outer surface faces. The light emitter is operable with power supplied from a battery pack. The light-transmissive member is transmissive to at least part of light from the light emitter and extends on the first outer surface and on the second outer surface.

公开(公告)号：US11863047B2

公开(公告)日：2024-01-02

申请号：US18127293

申请日：2023-03-28

Applicant: MAKITA CORPORATION

Inventor： Kei Kouda ,  Hideki Abe

IPC: H02K7/00 ,  H02K5/08 ,  H02K5/16 ,  H02K21/16 ,  A01D34/78 ,  H02K7/08 ,  F16C3/02 ,  A01D101/00

CPC classification number: H02K7/003 ,  A01D34/78 ,  H02K5/08 ,  H02K5/161 ,  H02K7/083 ,  H02K21/16 ,  A01D2101/00 ,  F16C3/02

Abstract: An electric work machine, such as a lawn mower includes a motor case (22) fixed inside a main-body housing (10). A brushless motor (21) is housed inside the motor case (22) and includes a stator (23) having a stator core (40), coils (45), and upper and lower insulators (42, 43), and a rotor (24) disposed inward of the stator (23) and having a rotary shaft (25). A spindle (17) is driven by the rotary shaft (25). The motor case (22) holds the stator (23) and axially supports the rotary shaft (25) via bearings (68, 76). One or more insulating members, such as an insulating cap (67) and/or a resin layer (78), provide electrical insulation between the stator core (40) and the rotary shaft (25).