公开(公告)号：US20240139915A1

公开(公告)日：2024-05-02

申请号：US18409099

申请日：2024-01-10

Applicant: MAKITA CORPORATION

Inventor： Ryunosuke KUMAGAI ,  Tokuo HIRABAYASHI ,  Hidenori NAGASAKA ,  Manabu SUGIMOTO

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

CPC classification number: B25B21/02 ,  B25B21/026 ,  B25F5/001 ,  B25F5/008 ,  B25F5/02 ,  B25B23/1405

Abstract: An impact tool includes a brushless motor having a rotor extending in a front-rear direction and disposed in a motor housing constituted by left, right and rear motor housings. A battery pack is disposed below the motor housing in an up-down direction. A plurality of first screws extend in a left-right direction and fix the left motor housing to the right motor housing. A plurality of second screws extend in the front-rear direction and fix the rear motor housing to the left and right motor housings. A fan is disposed between the rotor and the rear motor housing, a grip housing is disposed downward of the motor housing, and a planetary gear mechanism is disposed frontward of the motor. A spindle is disposed frontward of the planetary gear mechanism, a hammer is disposed on an outer circumference of the spindle, and an anvil is disposed frontward of the hammer.

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：US20190160636A1

公开(公告)日：2019-05-30

申请号：US16169303

申请日：2018-10-24

Applicant: MAKITA CORPORATION

Inventor： Tokuo HIRABAYASHI ,  Yasuhito KAWAI

IPC: B25B21/02

Abstract: An impact tool includes a motor, a first hammer, an anvil, and a second hammer. The first hammer is configured to be rotated by driving of the motor. The anvil is configured to be hammered in a rotation direction by the first hammer. The second hammer is configured to be switchable between a state being linked and a state not being linked to the first hammer. The impact tool ensures selections of a first hammering mode in which only the first hammer hammers the anvil and a second hammering mode in which the first hammer and the second hammer hammer the anvil.

公开(公告)号：US20190111550A1

公开(公告)日：2019-04-18

申请号：US16157475

申请日：2018-10-11

Applicant: MAKITA CORPORATION

Inventor： Itsuku KATO ,  Akira TOMONAGA ,  Katsuna HAYASHI ,  Tokuo HIRABAYASHI ,  Tomoyuki KONDO

IPC: B25B21/02 ,  B25D11/04 ,  H02P29/20 ,  H02P29/40

Abstract: An electric working machine in one aspect of the present disclosure includes: a motor; a controller for controlling driving of the motor; a first setter; and a second setter. The first setter is operated for setting, as a control method for the motor, which is usable by the controller, one of control methods preliminarily registered. The second setter is operated for setting, as a control method for the motor, which is usable by the controller, at least one of the control methods settable via the first setter.

公开(公告)号：US20170203418A1

公开(公告)日：2017-07-20

申请号：US15477388

申请日：2017-04-03

Applicant: MAKITA CORPORATION

Inventor： Ryunosuke KUMAGAI ,  Tokuo HIRABAYASHI ,  Hidenori NAGASAKA ,  Manabu SUGIMOTO

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

CPC classification number: B25B21/02 ,  B25B21/026 ,  B25B23/1405 ,  B25D11/04 ,  B25F5/001 ,  B25F5/008 ,  B25F5/02

Abstract: An impact driver or impact tool includes a motor, a motor housing that houses the motor, a grip housing integrally provided with the motor housing, a hammer case is disposed frontward of the motor housing, a spindle rotated by the motor, a hammer housed inside the hammer case and configured to be rotated by the spindle, and an anvil housed inside the hammer case which anvil is configured to be impacted by the hammer. In this impact driver, a length from a rear end of the motor housing to a front end of the anvil (i.e., the front-rear length of a main body) is less than 128 mm.

公开(公告)号：US20150343617A1

公开(公告)日：2015-12-03

申请号：US14698186

申请日：2015-04-28

Applicant: MAKITA CORPORATION

Inventor： Tomoyuki KONDO ,  Tokuo HIRABAYASHI

IPC: B25B21/02 ,  B25F5/00

CPC classification number: B25B21/02 ,  B25F5/00 ,  B25F5/006

Abstract: To provide a power tool and a rotary impact tool capable of suppressing transmission of vibration to a circuit board and so on from a drive portion connecting to a motor as a vibration generation source. An impact wrench includes a motor housing which houses a motor or a grip housing, a battery holding housing connecting to the motor housing or the grip housing through an elastic body and a control circuit board housed in the battery holding housing for controlling the motor.

Abstract translation: 提供能够抑制从连接到作为振动产生源的电动机的驱动部分到电路板等的振动传递的电动工具和旋转冲击工具。 冲击扳手包括容纳电动机或手柄壳体的电动机壳体，通过弹性体连接到电动机壳体或手柄壳体的电池保持壳体，以及容纳在用于控制电动机的电池容纳壳体中的控制电路板。