公开(公告)号：US20160368165A1

公开(公告)日：2016-12-22

申请号：US15176468

申请日：2016-06-08

Applicant: MAKITA CORPORATION

Inventor： Fumitoshi NUMATA

IPC: B28D7/02 ,  B23D45/16 ,  B28D1/04 ,  B23D59/00

CPC classification number: B28D7/02 ,  B23D45/16 ,  B23D59/006 ,  B27B9/02 ,  B28D1/045

Abstract: A compression spring is retained in a spring retaining portion provided in a fixing cover. By a pressing portion formed in a main body cover, the compression spring can be pressed to generate a biasing force in an opening direction of the main body cover. The compression spring is retained in the spring retaining portion. Accordingly, the fixing cover and main body cover can be easily assembled.

Abstract translation: 压缩弹簧保持在设置在固定盖中的弹簧保持部分中。 通过形成在主体盖中的按压部分，压缩弹簧可被按压以在主体盖的打开方向上产生偏置力。 压缩弹簧被保持在弹簧保持部分中。 因此，可以容易地组装固定盖和主体盖。

公开(公告)号：US20230249314A1

公开(公告)日：2023-08-10

申请号：US18151116

申请日：2023-01-06

Applicant: MAKITA CORPORATION

Inventor： Fumitoshi NUMATA

IPC: B24B47/26 ,  B24B41/00 ,  B24B23/02 ,  B24B47/12

CPC classification number: B24B47/26 ,  B24B41/007 ,  B24B23/028 ,  B24B47/12

Abstract: Heat generated during braking is reduced to prevent reduction in braking performance or the service life of the components. A grinder includes a housing, an operable member, a switch operable to be turned on or off in response to an operation on the operable member, a rotational shaft rotatable in response to an operation for turning on the switch, and a brake assembly that applies braking to the rotational shaft with the switch being in an off state and to release the braking applied to the rotational shaft in response to an operation for turning on the switch performed by the operable member. The brake assembly includes a brake member being circular and fixed to the rotational shaft, and multiple pressing members that press the brake member at multiple positions to apply a uniform force to the brake member from radially outward positions toward a center of the brake member.

公开(公告)号：US20220305508A1

公开(公告)日：2022-09-29

申请号：US17684904

申请日：2022-03-02

Applicant: MAKITA CORPORATION

Inventor： Fumitoshi NUMATA

IPC: B05B7/24

Abstract: An electric blower is configured to blow air. The blower includes a body configured such that a sprayer attachment is attachable thereto. The body is configured to be carried integrally with the sprayer attachment with the sprayer attachment attached to the body. The sprayer attachment includes a container, a nozzle and a liquid supply passage. The container is configured to store a liquid. The nozzle has a discharge opening. The liquid supply passage is connected to the container and the nozzle to lead the liquid.

公开(公告)号：US20220196034A1

公开(公告)日：2022-06-23

申请号：US17556185

申请日：2021-12-20

Applicant: MAKITA CORPORATION

Inventor： Fumitoshi NUMATA

IPC: F04D29/42 ,  F04D25/08 ,  F04D17/16

Abstract: A blower includes a body, a motor, and a single fan configured to rotate in response to rotation of a motor shaft to discharge air through a discharge opening. The maximum rotational speed of the motor shaft is within a range of 50,000 rpm to 120,000 rpm. An area of the discharge opening is changeable by a user. The blower is configured to selectively operate in a first mode or in a second mode according to the area of the discharge opening. In the first mode, the maximum blowing force of the air discharged through the opening is within a range of 2.5 N to 5.0 N when the motor is driven at the maximum rotational speed. In the second mode, the maximum dynamic pressure of the air discharged is within a range of 30 kPa to 65 kPa when the motor is driven at the maximum rotational speed.

公开(公告)号：US20220032439A1

公开(公告)日：2022-02-03

申请号：US17370671

申请日：2021-07-08

Applicant: MAKITA CORPORATION

Inventor： Fumitoshi NUMATA

IPC: B25F5/00 ,  B08B5/02 ,  B08B13/00

Abstract: A connecting structure between a power tool and an attachment includes a lock mechanism. The lock mechanism is configured to be actuated when the attachment is moved in a first direction relative to the power tool in response to an attaching operation being performed on the attachment by a user, and to lock the attachment in an attachment position to be immovable in a second direction opposite to the first direction when the attachment is placed in the attachment position relative to the power tool.

公开(公告)号：US20200262047A1

公开(公告)日：2020-08-20

申请号：US16756826

申请日：2018-11-08

Applicant: MAKITA CORPORATION

Inventor： Fumitoshi NUMATA ,  Hideharu MUTO ,  Yasushi OGURA ,  Kenichi TABUSHI

IPC: B25F5/02 ,  B24B23/02 ,  G08B21/18

Abstract: A metal wire may be provided inside a hanger portion extending with an annular shape and which is integrally formed with an outer casing. An electric power tool may be prevented from falling, etc. due to deformation or breakage of the hanger portion by being reinforced by the wire.

公开(公告)号：US20190077004A1

公开(公告)日：2019-03-14

申请号：US16123604

申请日：2018-09-06

Applicant: MAKITA CORPORATION

Inventor： Fumitoshi NUMATA

IPC: B25F5/00 ,  H02K9/04 ,  H02K9/22 ,  H02K9/08 ,  B23D45/16

Abstract: In an electric power tool 1 including a motor 20, a cooling fan 24 for cooling the motor 20, a plurality of intake ports 11a through which outside air is introduced by use of said cooling fan 24, and a heating element 50 That generates heat, a heat sink 40 is disposed between the motor 20 and the intake port 11a. The heating element 50 is connected to the heat sink 40 through a heat pipe 30.