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公开(公告)号：US12220791B2
公开(公告)日：2025-02-11
申请号：US18409099
申请日：2024-01-10
Applicant: MAKITA CORPORATION
Inventor： Ryunosuke Kumagai , Tokuo Hirabayashi , Hidenori Nagasaka , Manabu Sugimoto
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.
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公开(公告)号：US11161227B2
公开(公告)日：2021-11-02
申请号：US16157492
申请日：2018-10-11
Applicant: MAKITA CORPORATION
Inventor： Itsuku Kato , Akira Tomonaga , Katsuna Hayashi , Tokuo Hirabayashi , Tomoyuki Kondo
Abstract: An electric working machine in one aspect of the present disclosure includes: a motor, a manipulator, a setter, and a controller. The setter sets first control characteristics preliminarily registered. The first control characteristics are set to achieve a rotational speed of the motor from a minimum rotational speed to a maximum rotational speed with a manipulating range of the manipulator, which is 50% or less of an effective manipulating range thereof.
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公开(公告)号：US10906163B2
公开(公告)日：2021-02-02
申请号：US16654461
申请日：2019-10-16
Applicant: MAKITA CORPORATION
Inventor： Hidenori Nagasaka , Ryunosuke Kumagai , Koji Tsukamoto , Tomonori Kawase , Kosuke Ito , Tokuo Hirabayashi , Yasuhito Kawai
Abstract: A power tool includes a tool-main-body part, an electric motor as a drive source, a grip part, which extends downward from the tool-main-body part and is configured to be gripped by a user, and a power-supply unit at a tip of the grip part. The power tool includes a controller configured to control the operation of the electric motor, the controller being located on the power-supply unit, and a display controlled by the controller and configured to indicate an operating state of the electric motor. The controller and the display each have a flat-plate shape and are disposed along a surface direction with respect to one another, and the display includes a first portion that overlies the controller and a second portion that projects beyond an end edge of the controller.
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公开(公告)号：US10478950B2
公开(公告)日：2019-11-19
申请号：US15356862
申请日：2016-11-21
Applicant: MAKITA CORPORATION
Inventor： Hidenori Nagasaka , Ryunosuke Kumagai , Koji Tsukamoto , Tomonori Kawase , Kosuke Ito , Tokuo Hirabayashi , Yasuhito Kawai
Abstract: A power tool includes a tool-main-body part, an electric motor as a drive source, a grip part, which extends downward from the tool-main-body part and is configured to be gripped by a user, and a power-supply unit at a tip of the grip part. The power tool includes a controller configured to control the operation of the electric motor, the controller being located on the power-supply unit, and a display controlled by the controller and configured to indicate an operating state of the electric motor. The controller and the display each have a flat-plate shape and are disposed along a surface direction with respect to one another, and the display includes a first portion that overlies the controller and a second portion that projects beyond an end edge of the controller.
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公开(公告)号：US20150135907A1
公开(公告)日：2015-05-21
申请号：US14404261
申请日：2013-05-20
Applicant: MAKITA CORPORATION
Inventor： Tokuo Hirabayashi , Ryunosuke Kumagai , Takeshi Nishimiya , Goshi Ishikawa , Takuya Kusakawa
CPC classification number: B25B21/008 , B23Q5/048 , B23Q15/12 , B25B21/02 , B25B23/1475
Abstract: A power tool of one aspect for tightening a screw to a tightening-target-object is provided with a motor as a drive force. A motor controlling device controls the motor so as to make rotational frequency of the motor in accordance with an input operation received by an input-operation receiving unit. A first setting unit sets a maximum rotational frequency to a given first maximum rotational frequency when the motor is initiated. If the power tool clears a given condition for increasing rotational frequency after the motor is initiated, a second setting unit sets the maximum rotational frequency to a given second maximum rotational frequency that is larger than the first maximum rotational frequency.
Abstract translation: 将用于将螺钉拧紧到紧固目标物体的一个方面的电动工具设置有作为驱动力的电动机。 电动机控制装置控制电动机，以便根据由输入操作接收单元接收到的输入操作使电动机的转速变化。 当电动机起动时，第一设定单元将最大转动频率设定为给定的第一最大转速。 如果电动工具在电动机起动之后清除用于增加转速的给定条件，则第二设定单元将最大转动频率设定为大于第一最大转速的给定第二最大转速。
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Patent Agency Ranking
公开(公告)号：US11213933B2
公开(公告)日：2022-01-04
申请号：US16157475
申请日：2018-10-11
Applicant: MAKITA CORPORATION
Inventor： Itsuku Kato , Akira Tomonaga , Katsuna Hayashi , Tokuo Hirabayashi , Tomoyuki Kondo
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.
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公开(公告)号：US10213912B2
公开(公告)日：2019-02-26
申请号：US14320980
申请日：2014-07-01
Applicant: MAKITA CORPORATION
Inventor： Ryunosuke Kumagai , Tokuo Hirabayashi
Abstract: An impact driver includes a motor, a spindle rotated by the motor, a hammer that is movable forward and rearward with respect to the spindle and that has an inner peripheral portion facing the spindle, and an anvil struck in a rotational direction by the hammer. A grease supply path is provided to supply grease to the inner peripheral portion of the hammer.
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公开(公告)号：US10213907B2
公开(公告)日：2019-02-26
申请号：US15477388
申请日：2017-04-03
Applicant: MAKITA CORPORATION
Inventor： Ryunosuke Kumagai , Tokuo Hirabayashi , Hidenori Nagasaka , Manabu Sugimoto
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.
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公开(公告)号：US09643300B2
公开(公告)日：2017-05-09
申请号：US14064278
申请日：2013-10-28
Applicant: MAKITA CORPORATION
Inventor： Ryunosuke Kumagai , Tokuo Hirabayashi , Hidenori Nagasaka , Manabu Sugimoto
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.
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公开(公告)号：US20150144365A1
公开(公告)日：2015-05-28
申请号：US14406045
申请日：2013-06-04
Applicant: MAKITA CORPORATION
Inventor： Tokuo Hirabayashi , Ryunosuke Kumagai , Takeshi Nishimiya , Goshi Ishikawa , Takuya Kusakawa
CPC classification number: B25B23/1405 , B25B21/02
Abstract: A rotary impact tool according to one aspect of the present invention includes a motor, an impact mechanism, a drive unit, an impact detection unit, and a control unit. The control unit reduces a driving force for the motor caused by the drive unit when a count of impacts detected by the impact detection unit has reached a determination count set in advance, which is a value greater than one.
Abstract translation: 根据本发明的一个方面的旋转冲击工具包括马达，冲击机构，驱动单元，冲击检测单元和控制单元。 当冲击检测单元检测到的冲击计数达到预先设定的大于1的确定计数时，控制单元减小由驱动单元引起的电动机的驱动力。
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