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公开(公告)号：US20190077005A1
公开(公告)日：2019-03-14
申请号：US16185991
申请日：2018-11-09
Applicant: MAKITA CORPORATION
Inventor： Miyabi ITO , Ryunosuke KUMAGAI , Shin SUGIURA , Akira MIZUTANI , Takahiro KAWAKAMI
Abstract: An electric tool, such as an angle driver, has a main tool body with a front portion and a rear portion positioned opposite to the front portion. The main tool body houses a motor configured to receive electricity to function as a drive source. A gear head is coupled with the front portion of the main tool body wherein the gear head has a spindle in communication with a motor axis of the motor via mesh-engagement of bevel gears associated with the motor axis. The spindle has with a cutter tool accessory attached thereto such that rotation of the motor axis produces a commensurate rotation of the cutter tool accessory. Battery attachment portions are associated with the rear portion of the main tool body and are configured to receive a corresponding set of batteries that provide electricity to power the motor.
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公开(公告)号：US20160107297A1
公开(公告)日：2016-04-21
申请号：US14885448
申请日：2015-10-16
Applicant: MAKITA CORPORATION
Inventor： Goshi ISHIKAWA , Ryunosuke KUMAGAI , Takuya KUSAKAWA , Yoshitaka ICHIKAWA , Tokuo HIRABAYASHI
CPC classification number: B25B21/008 , B25B21/02 , B25B21/026 , B25B23/18
Abstract: An electric power tool in one aspect of the present disclosure comprises a motor, a hitting mechanism, a hitting detector, and a control unit. The control unit is configured to set a control amount of the motor so that the motor rotates at a lower speed than a speed in the target rotation state during an initial driving period, and switch the control amount to a final control amount corresponding to the target rotation state when the initial driving period elapses. The initial driving period is a period from when generation of a hitting force is detected by the hitting detector until a predetermined first time period elapses, after the motor is started driven.
Abstract translation: 本公开的一个方面的电动工具包括电动机，击打机构，击打检测器和控制单元。 控制单元被配置为设置电动机的控制量，使得电动机在初始驱动期间以比目标旋转状态的速度低的速度旋转，并且将控制量切换到对应于目标的最终控制量 当初始驾驶时间过去时的旋转状态。 初始驱动期间是在电动机开始驱动之后从打击检测器产生击打力直到经过预定的第一时间段的时间段。
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公开(公告)号：US20220055191A1
公开(公告)日：2022-02-24
申请号：US17517712
申请日：2021-11-03
Applicant: MAKITA CORPORATION
Inventor： Ryunosuke KUMAGAI , Tokuo HIRABAYASHI , Tomoyuki KONDO
Abstract: An impact tool (1; 1A) includes a spindle (12) rotated by a motor (10) and a hammer (70) rotated by the spindle. The hammer is designed to impact an anvil (14) in a rotational direction. A case (8) houses the hammer. A bearing (78A, 78B) is disposed between the hammer case and the anvil. An O-ring (84) is disposed between the anvil and the bearing.
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公开(公告)号：US20200009709A1
公开(公告)日：2020-01-09
申请号：US16491731
申请日：2017-12-18
Applicant: MAKITA CORPORATION
Inventor： Ryunosuke KUMAGAI , Tokuo HIRABAYASHI , Tomoyuki KONDO
IPC: B25B21/02
Abstract: An impact tool (1; 1A) includes a spindle (12) rotated by a motor (10) and a hammer (70) held by the spindle. The hammer is designed to impact an anvil (14) in a rotational direction. A case (8) houses the hammer. A first bearing (78A) and a second bearing (78B) are held in the case and arranged along the axial direction. The first bearing and the second bearing directly hold the anvil in a rotatable manner.
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公开(公告)号：US20170182649A1
公开(公告)日：2017-06-29
申请号：US15459789
申请日：2017-03-15
Applicant: MAKITA CORPORATION
Inventor： Miyabi ITO , Ryunosuke KUMAGAI , Shin SUGIURA , Akira MIZUTANI , Takahiro KAWAKAMI
CPC classification number: B25F5/02 , B24B23/028 , H02J7/00 , H02J7/0013 , H02J7/0045 , H02J7/0063
Abstract: An electric tool, such as an angle driver, has a main tool body with a front portion and a rear portion positioned opposite to the front portion. The main tool body houses a motor configured to receive electricity to function as a drive source. A gear head is coupled with the front portion of the main tool body wherein the gear head has a spindle in communication with a motor axis of the motor via mesh-engagement of bevel gears associated with the motor axis. The spindle has with a cutter tool accessory attached thereto such that rotation of the motor axis produces a commensurate rotation of the cutter tool accessory. Battery attachment portions are associated with the rear portion of the main tool body and are configured to receive a corresponding set of batteries that provide electricity to power the motor.
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Patent Agency Ranking
公开(公告)号：US20170133965A1
公开(公告)日：2017-05-11
申请号：US15339327
申请日：2016-10-31
Applicant: MAKITA CORPORATION
Inventor： Yoshitaka ICHIKAWA , Ryunosuke KUMAGAI , Tokuo HIRABAYASHI
Abstract: An electric working machine in one aspect of the present disclosure comprises a motor, a first operation unit, a control unit, a second operation unit, and a storage unit. The storage unit stores a reference speed that is set via the second operation unit. The control unit drives the motor at a rotation speed corresponding to a drive command from the first operation unit, in accordance with a control characteristic that is set based on the reference speed stored in the storage unit.
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公开(公告)号：US20140182869A1
公开(公告)日：2014-07-03
申请号：US14064278
申请日：2013-10-28
Applicant: MAKITA CORPORATION
Inventor： Ryunosuke KUMAGAI , Tokuo HIRABAYASHI , Hidenori NAGASAKA , Manabu SUGIMOTO
IPC: B25B21/02
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.
Abstract translation: 冲击驱动器或冲击工具包括电动机，容纳电动机的电动机壳体，与电动机壳体一体设置的把手壳体，设置在电动机壳体前方的锤壳体，由电动机旋转的心轴，容纳在内部的锤 锤壳，并被构造成由主轴旋转;以及砧座，其容纳在锤壳内，砧被构造成被锤撞击。 在该冲击驱动器中，从马达壳体的后端到砧座的前端（即，主体的前后长度）的长度小于128mm。
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公开(公告)号：US20240359298A1
公开(公告)日：2024-10-31
申请号：US18765769
申请日：2024-07-08
Applicant: MAKITA CORPORATION
Inventor： Ryunosuke KUMAGAI , Tokuo HIRABAYASHI , Tomoyuki KONDO
Abstract: A power tool includes an anvil (14) operably driven by a motor (10); an insertion hole (91) defined the anvil, into which a bit is insertable; a through hole (92) extending radially from the insertion hole; a ball (93) disposed in the through hole; and a manually-movable sleeve (99) mounted around on the anvil and being axially slidable relative to the anvil. At a retracted position, the manually-movable sleeve presses the ball radially inwardly. At an advanced position, the manually-movable sleeve releases the pressing of the ball. A flat spring (97) is configured to bias the ball radially inwardly. The manually-movable sleeve has a length such that the flat spring is exposed at the advanced position.
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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
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.
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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
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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