公开(公告)号：US20210107130A1

公开(公告)日：2021-04-15

申请号：US16981648

申请日：2019-03-08

Applicant: MAKITA CORPORATION

Inventor： Kiyonobu YOSHIKANE ,  Shuchun WANG

IPC: B25F5/02 ,  B25H3/00

Abstract: A coupling member for an electric power tool is provided. The coupling member can keep a hanging member being held, even when a holding portion of the tool for holding the hanging member breaks. A coupling member for an electric power tool is configured to hook a hanging member to an electric power tool main body and can fasten the electric power tool main body therein, when one of its parts opens or closes. Further, this coupling member can be attached to the electric power tool main body with the electric power tool main body fastened therein or removed therefrom. Further, the hanging member can be hooked to the coupling member.

公开(公告)号：US20210106194A1

公开(公告)日：2021-04-15

申请号：US17130964

申请日：2020-12-22

Applicant: MAKITA CORPORATION

Inventor： Hitoshi SUZUKI ,  Yuki KAWAI ,  Itsuku KATO ,  Yasutaka HOTTA

IPC: A47L7/00 ,  A47L9/28 ,  G05F1/445 ,  H02M1/08

Abstract: An interlocking adapter in one aspect of the present disclosure includes a current path, an electric load, a switch, and a controller. The controller turns on and off the switch in synchronization with a change of an alternating-current voltage received from an electric outlet of an electric apparatus in response to reception of an interlocking command signal from a working machine so as to supply a load current from the electric outlet to the electric load. The controller turns on and off the switch at a specified ratio of a time every 1/2 cycle of the alternating-current voltage.

公开(公告)号：US20210098832A1

公开(公告)日：2021-04-01

申请号：US17022193

申请日：2020-09-16

Applicant: MAKITA CORPORATION

Inventor： Tadahiko KOBAYAKAWA ,  Hiroki UESUGI ,  Hayato KANO

IPC: H01M10/42 ,  H01M10/44 ,  G01R31/3828 ,  H01M10/48

Abstract: A battery pack in one aspect of the present disclosure includes a battery and a controller provided with a counter value. During discharge of the battery pack, the controller calculates an addition value in accordance with a total number of use of the battery pack under a specified condition. The controller updates the counter value by adding the addition value. The controller prohibits the discharge of the battery pack in response to the counter value reaching a protection threshold.

公开(公告)号：US20210094164A1

公开(公告)日：2021-04-01

申请号：US17022207

申请日：2020-09-16

Applicant: MAKITA CORPORATION

Inventor： Fumitoshi NUMATA

IPC: B25F5/02 ,  B25F5/00

Abstract: An electric power tool includes a housing, a fan, a tubular portion, and a rectifier. The housing houses a motor. The fan rotates in association with driving of the motor to generate a cooling air for the motor within the housing. The tubular portion is formed in the housing to house the fan. The rectifier is disposed to be opposed to the fan in an upstream side of the cooling air. The rectifier is divided into an inside and an outside in a radial direction of the tubular portion, the outside in the radial direction is formed of the tubular portion, and the inside in the radial direction is formed of a baffle plate assembled to the housing.

公开(公告)号：US20210091686A1

公开(公告)日：2021-03-25

申请号：US17015158

申请日：2020-09-09

Applicant: MAKITA CORPORATION

Inventor： Yoshitaka ICHIKAWA

IPC: H02P1/12 ,  H02P29/00 ,  H02J7/00 ,  H01M10/48

Abstract: An electric working machine in one aspect of the present disclosure includes a motor and a controller. The motor is configured to be electrically coupled to a battery pack and to be driven with electric power from the battery pack. The controller is configured to acquire an internal resistance information of the battery pack and to change control of the motor based on the internal resistance information acquired.

公开(公告)号：US10953524B2

公开(公告)日：2021-03-23

申请号：US15928788

申请日：2018-03-22

Applicant: MAKITA CORPORATION

Inventor： Masahiko Sako ,  Takaaki Osada ,  Hirokatsu Yamamoto

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

Abstract: An impact fastening tool may include a motor; a hammer configured to be rotationally driven by the motor; an anvil configured to be hit in a rotational direction by the hammer; a signal obtainer configured to obtain a variable signal which varies in accordance with a hit to the anvil by the hammer; and a seating determiner configured to determine whether or not a fastener has been seated based on the variable signal obtained by the signal obtainer, wherein the seating determiner is configured to determine whether or not the fastener has been seated based on a signal component of the variable signal obtained by the signal obtainer, the signal component corresponding to a predetermined reference frequency.

公开(公告)号：US20210078154A1

公开(公告)日：2021-03-18

申请号：US17016591

申请日：2020-09-10

Applicant: Makita Corporation

Inventor： Takuma NIIYAMA

IPC: B25F5/00 ,  A01G3/053 ,  A01G3/08

Abstract: A working machine may include a pipe, a body unit, a tool unit, a shaft, and a speed increaser. The body unit may be disposed at a rear end of the pipe and include a prime mover. The tool unit may be disposed at a front end of the pipe and include a front tool. The shaft may be disposed inside the pipe and be configured to transmit power of the prime mover to the front tool. The speed increaser may be disposed between the shaft and the front tool. The speed increaser may be configured to make a rotational speed of the front tool higher than a rotational speed of the shaft.

公开(公告)号：US10946462B2

公开(公告)日：2021-03-16

申请号：US16447075

申请日：2019-06-20

Applicant: MAKITA CORPORATION

Inventor： Toshiyuki Kani ,  Yuta Okuhira

IPC: B23D55/10 ,  B23D53/12

Abstract: In a band saw that is provided with a tension adjustment mechanism in which tension for an band saw blade can be adjusted, first and second wheel support shafts are provided in paired first and second wheel support portions, respectively, such that the first support shaft is parallel to the second support shaft. The first wheel support portion is configured to be movable in a direction in which a straight line extends, the straight line being perpendicular to both the first and second wheel support shafts. A first support is provided at a first end of the first wheel support portion, and a second support is provided at a second end of the first wheel support portion. Furthermore, an intermediate support is provided between the first support and the second support. A first load and a second load are configured to be applied to the second support and the intermediate support, respectively, such that the first load and the second load are parallel to the wheel support shaft and the direction of the first load is opposite to that of the second load.

公开(公告)号：US20210060741A1

公开(公告)日：2021-03-04

申请号：US16928466

申请日：2020-07-14

Applicant: MAKITA CORPORATION

Inventor： Kihiro KUSUMOTO ,  Tokuo HIRABAYASHI ,  Yuya SANO ,  Koji KASUGAI

IPC: B25B21/02 ,  B25F5/02

Abstract: An anvil receives less stress around a rectangular prism and has higher durability. An impact wrench includes a motor, a hammer rotatable by the motor, a body accommodating the motor and the hammer, and an anvil protruding frontward from the body and to be struck in a rotation direction by the hammer. The anvil includes a blade to be in contact with the hammer, a cylinder located frontward from the blade, a rectangular prism located frontward from the cylinder, at least one chamfered surface each at an edge of the rectangular prism, and a concave on a rear end of the at least one chamfered surface.

公开(公告)号：US20210039701A1

公开(公告)日：2021-02-11

申请号：US16986821

申请日：2020-08-06

Applicant: Makita Corporation

Inventor： Yasuo IFUKU ,  Susumu KATO

IPC: B62B3/08 ,  B62B3/00 ,  B62B5/06

Abstract: A handcart may include: a support frame; a container; a lock member configured to move between a locking position at which the lock member restricts rotation of the container relative to the support frame and an unlocked position at which the lock member allows the rotation of the container relative to the support frame; and a retainer member configured to move between a retaining position at which the retainer member restricts a movement of the lock member from the unlocked position to the locking position and a non-retaining position at which the retainer member allows the movement of the lock member from the unlocked position to the locking position. The lock member may be configured to move from the locking position to the unlocked position and be maintained in the unlocked position by a movement of the retainer member from the non-retaining position to the retaining position.