公开(公告)号：US20220320939A1

公开(公告)日：2022-10-06

申请号：US17596745

申请日：2020-06-19

Applicant: MAKITA CORPORATION

Inventor： Akira NAITO

IPC: H02K3/34 ,  H02K3/12 ,  H02K7/00 ,  H02K7/116 ,  H02K7/14 ,  B25F5/00

Abstract: An electric work machine (1) includes a motor (8) having a rotor (23) disposed within a stator core (31) and coils (34) disposed on the stator core; a power-transmission mechanism (10) driven by the rotor; and an output shaft (6), on which a tool accessory is mountable and which is operably driven by the power-transmission mechanism. The stator core includes an outer-side member (40) having projection parts (42) protruding radially inward from a circular-ring part (41) in a spaced apart manner in a circumferential direction of the stator core and respectively supporting the coils; and an inner-side member (43) disposed radially inward of the outer-side member and coupled to inner-end portions of the projection parts. A plurality of first insulators (32) and a plurality of second insulators (33) may be respectively disposed around the projection parts and interconnected in an alternating manner in the circumferential direction.

公开(公告)号：US20220314417A1

公开(公告)日：2022-10-06

申请号：US17694822

申请日：2022-03-15

Applicant: MAKITA CORPORATION

Inventor： Takeshi KAMIYA

IPC: B25F5/00

Abstract: A power tool with a small size in an axial direction includes a reducer allowing smooth and stable switching between variable speeds. The power tool includes a motor, a reducer that reduces rotation from the motor, and an actuator actuated by the rotation reduced by the reducer. The reducer includes a preceding internal gear in a preceding stage, a succeeding internal gear in a succeeding stage, an engagement member radially outward from the internal gears and switchable between a first position to restrict rotation of the preceding internal gear and a second position to restrict rotation of the succeeding internal gear, planetary gears that revolve within the internal gears, carriers supporting the planetary gears, and an operation unit to switch the engagement member selectively to the first position or the second position.

公开(公告)号：US20220314413A1

公开(公告)日：2022-10-06

申请号：US17846307

申请日：2022-06-22

Applicant: MAKITA CORPORATION

Inventor： Masanori FURUSAWA ,  Kanako HIRONO ,  Kei WATANABE

IPC: B25D17/04 ,  B25D11/12 ,  B25D17/24

Abstract: An impact tool includes a motor, a driving mechanism, a tool body, an elastically-connected part elastically connected to the tool body to be movable at least in a front-rear direction relative to the tool body, a detecting mechanism configured to detect pressing of a tool accessory against a workpiece, and a control part configured to control driving of the motor based on a detection result of the detecting mechanism. The detecting mechanism includes a movable member that is provided in one of the tool body and the elastically-connected part and configured to be moved by relative movement of the other of the tool body and the elastically-connected part in the front-rear direction, and a detector that is provided in the one of the tool body and the elastically-connected part and configured to detect rearward pressing of the tool accessory by detecting movement of the movable member.

公开(公告)号：US20220313043A1

公开(公告)日：2022-10-06

申请号：US17691211

申请日：2022-03-10

Applicant: MAKITA CORPORATION

Inventor： Kenta MORIMOTO ,  Takuo ARAKAWA

IPC: A47L11/24 ,  A47L11/40

Abstract: A cleaning machine may include: a drive shaft; a rotation transmitting mechanism configured to transmit rotation of the drive shaft; a brush attaching member configured to rotate about a rotation axis; a clutch mechanism coupling the rotation transmitting mechanism with the brush attaching member; a brush attached to the brush attaching member; and a brush moving mechanism configured to move the brush attaching member between an adjacent position adjacent to a working plane and a distant position distanced from the working plane. The clutch mechanism may be configured to transmit the rotation from the rotation transmitting mechanism to the brush attaching member when the brush attaching member is at the adjacent position and cut off transmission of the rotation from the rotation transmitting mechanism to the brush attaching member when the brush attaching member is at the distant position.

公开(公告)号：US11454250B2

公开(公告)日：2022-09-27

申请号：US16883226

申请日：2020-05-26

Applicant: MAKITA CORPORATION

Inventor： Ko Fukunaga

IPC: F04D29/58 ,  A01G20/47 ,  B08B5/02 ,  F04D19/00 ,  F04D25/06 ,  H01M50/20

Abstract: A blower may include an air passage including an air intake hole and an air discharge hole; a fan disposed in the air passage and passing air from the air intake hole to the air discharge hole; a control unit; and a chamber that houses the control unit. The chamber may include a first communication hole communicating outside of the blower to the chamber, and a second communication hole communicating a part of the air passage disposed on an air intake hole side relative to the fan to the chamber. The chamber may include a cooling air passage which allows air having flowed in from the first communication hole to flow out from the second communication hole via the control unit. The first communication hole may be disposed on the air intake hole side relative to the fan with respect to a direction along a rotation axis of the fan.

公开(公告)号：US20220298813A1

公开(公告)日：2022-09-22

申请号：US17632314

申请日：2020-08-18

Applicant: MAKITA CORPORATION

Inventor： Shunta MIZUNO ,  Yuta ASAKURA

IPC: E04G21/12 ,  B21F15/04 ,  B65B13/28

Abstract: A rebar tying tool is configured to tie rebars with a wire. The rebar tying tool may include: a feeding unit, a twisting unit, a grip, an indicator, and a facing surface. The feeding unit may be configured to feed the wire around the rebars. The twisting unit may be configured to twist the wire around the rebars. The grip may be disposed downward than the twisting unit and configured to be gripped by an operator. The indicator may be configured to indicate a status of the rebar tying tool. The facing surface may be disposed in front of the grip and facing the grip. The indicator may be disposed on the facing surface.

公开(公告)号：US11446780B2

公开(公告)日：2022-09-20

申请号：US17060178

申请日：2020-10-01

Applicant: MAKITA CORPORATION

Inventor： Keita Mori ,  Kiyonobu Yoshikane

IPC: B23Q11/00 ,  B25D16/00 ,  B25D17/20 ,  B25D17/04

Abstract: A dust collector includes a body configured to be removably attached to a lower side of a tool body of a drilling tool, a dust storing part to be disposed on a lower side of the body, a sliding part having a suction port and held by the body so as to be slidable in a front-rear direction, a dust transfer passage extending within the sliding part and connecting the suction port and an inlet of the dust storing part, and a tool connection passage disposed within an internal space of the body and configured to connect an outlet of the dust storing part and an inlet of the tool body of the drilling tool. The dust storing part includes the inlet, a filter, a dust storing space and the outlet. The filter is disposed forward of the inlet of the dust storing part.

公开(公告)号：USD963567S1

公开(公告)日：2022-09-13

申请号：US29817188

申请日：2021-11-29

Applicant: MAKITA CORPORATION

Designer： Tomonori Kawase ,  Junichi Murakami

公开(公告)号：US11433525B2

公开(公告)日：2022-09-06

申请号：US16574131

申请日：2019-09-18

Applicant: MAKITA CORPORATION

Inventor： Akira Niwa

IPC: B25F5/02 ,  H02K11/215 ,  H02K11/30 ,  F21V33/00 ,  H01B7/00 ,  H02K3/52 ,  H02K5/08 ,  H02K7/14 ,  H02K11/00 ,  H02K21/16 ,  F21Y115/10 ,  B25B21/02

Abstract: In one aspect of the present disclosure, an electric working machine includes an integrally-molded member, a first conductor, and a second conductor. The integrally-molded member includes a surface and contains an insulation material. The first conductor is integrally provided to the surface of the integrally-molded member and supplies a first current. The second conductor is integrally provided to the integrally-molded member and supplies a second current. A portion of the second conductor is embedded into the integrally-molded member.

公开(公告)号：US11426838B2

公开(公告)日：2022-08-30

申请号：US16611796

申请日：2018-06-13

Applicant: MAKITA CORPORATION

Inventor： Hajime Takeuchi

IPC: B24B47/26 ,  B23Q11/00 ,  B25F5/00

Abstract: A grinder includes a brake mechanism configured to brake a spindle and an electrical actuator (a solenoid) that actuates the brake mechanism. The solenoid actuates the brake mechanism in conjunction with a turning OFF of a switch from a driving state of a motor, and releases an actuation of the brake mechanism after a lapse of a predetermined period of time from the turning OFF of the switch.