公开(公告)号：US20190047115A1

公开(公告)日：2019-02-14

申请号：US16049255

申请日：2018-07-30

Applicant: MAKITA CORPORATION

Inventor： Shin NAKAMURA ,  Akira MIZUTANI ,  Junya ISHIKAWA

IPC: B24B47/12 ,  B24B23/02

Abstract: An electric power tool, for example, a polisher 1 includes a tip end tool 67a, an output shaft 65 extending in a direction perpendicular to a work surface, a main body housing 2 extending in a direction perpendicular to the output shaft 65, a motor 30 housed in the main body housing 2, and an electric circuit board 35 disposed parallel to the motor 30 in an direction in which the main body housing 2 extends.

公开(公告)号：US20170072534A1

公开(公告)日：2017-03-16

申请号：US15258045

申请日：2016-09-07

Applicant: MAKITA CORPORATION

Inventor： Shin NAKAMURA ,  Takafumi KOTSUJI ,  Ken GOTO ,  Akira MIZUTANI ,  Junya ISHIKAWA

IPC: B24B55/05 ,  B24B23/02

CPC classification number: B24B55/052 ,  B24B23/02 ,  B24B23/028 ,  B25F5/02 ,  B25F5/026

Abstract: A grinder (100) includes a motor (12), a housing (4, 6, 30), a spindle (24), a first cover (120), and a second cover (170). The spindle protrudes downward from the housing, is driven by the motor, and thereby rotates. The first cover is provided in the circumferential direction of the spindle, is fixed to the housing, and at least partially covers a tool accessory (40), which is mounted on the spindle, from above. The second cover is detachably mounted on the housing (6) independently of the first cover.

Abstract translation: 磨床（100）包括马达（12），壳体（4,6），主轴（24），第一盖（120）和第二盖（170）。 主轴从壳体向下突出，由电机驱动，从而旋转。 第一盖设置在主轴的圆周方向上，固定在壳体上，并且至少部分地覆盖从上方安装在主轴上的工具附件（40）。 第二盖子独立于第一盖子可拆卸地安装在壳体（6）上。

公开(公告)号：US20230158630A1

公开(公告)日：2023-05-25

申请号：US17912697

申请日：2021-04-06

Applicant: MAKITA CORPORATION

Inventor： Junya ISHIKAWA ,  Ryosuke OTANI ,  Daiki IMAIDA ,  Fumiyoshi SAITO ,  Shinichi HONMA

IPC: B24B23/02 ,  B24B49/10

CPC classification number: B24B23/022 ,  B24B49/10 ,  B25F5/026

Abstract: A tool includes a prime mover, switch, operation member for the switch, first accessory, second accessory, third intermediate member moved in conjunction with displacement of the operation member, first intermediate member configured to be displaced from a first blocking position of blocking a displacement route of the third intermediate member to a first non-blocking position of not blocking the displacement route by attachment of the first accessory, and second intermediate member configured to be displaced from a second blocking position of blocking the displacement route to a second non-blocking position of not blocking the displacement route by attachment of the second accessory. Only when the first intermediate member is located at the first non-blocking position and the second intermediate member is located at the second non-blocking position, the third intermediate member is permitted to be displaced so that the operation member is permitted to be displaced to the ON position.

公开(公告)号：US20230064399A1

公开(公告)日：2023-03-02

申请号：US17860322

申请日：2022-07-08

Applicant: MAKITA CORPORATION

Inventor： Ryosuke OTANI ,  Junya ISHIKAWA

IPC: B25F5/02

Abstract: A power tool includes a side handle that can be toollessly positioned and also attached to or detached from a tool body. The power tool includes a tool body having a side surface, a side handle on the side surface of the tool body, and an operable portion operable to attach or detach the side handle to or from the tool body and to position the side handle being attached to the tool body.

公开(公告)号：US20210053175A1

公开(公告)日：2021-02-25

申请号：US16981247

申请日：2019-03-27

Applicant: MAKITA CORPORATION

Inventor： Ryosuke OTANI ,  Junya ISHIKAWA ,  Takafumi KOTSUJI ,  Satoshi NINAGAWA ,  Ken GOTO ,  Yu ETO

IPC: B24B23/02 ,  B24B55/00

Abstract: A hand-held tool, such as a disc grinder, is used to perform work at a high work site, a countermeasure is taken to prevent the hand-held tool from falling by using a suspension tool, such as a tether strap. If a coupling part that couples the suspension tool to the hand-held tool is damaged, this fact is notified to a user. Thereby, an original function of the suspension tool can be reliably performed. If a large impact is applied to a coupling member via a suspension tool, the coupling member is displaced to a second position, due to the deformation of a first position retaining member. A conductive portion disengages from contacts to cause a power circuit to be shut off, thereby prohibiting a main body part from being activated.

公开(公告)号：US20230011055A1

公开(公告)日：2023-01-12

申请号：US17640643

申请日：2020-08-06

Applicant: MAKITA CORPORATION

Inventor： Hiroki KANEKO ,  Akira MIZUTANI ,  Ryosuke OTANI ,  Shunpei YAMAJI ,  Junya ISHIKAWA ,  Fumiyoshi SAITO

IPC: B25F5/02 ,  B24B47/12

Abstract: The disclosure discloses an electric power tool. The electric power tool may include a motor, a power transmission mechanism connected to the motor, a housing that houses the motor and the power transmission mechanism, an end tool holder to which an end tool is configured to be attached and from which the end tool is configured to be detached, and connected to the power transmission mechanism, and a handle attached to the housing. The electric power tool may be configured to prohibit rotation of the motor when a user is not gripping the handle.

公开(公告)号：US20180361536A1

公开(公告)日：2018-12-20

申请号：US16000010

申请日：2018-06-05

Applicant: MAKITA CORPORATION

Inventor： Hideharu MUTO ,  Junya ISHIKAWA

IPC: B24B55/05 ,  B24B23/02

Abstract: A grinder may include a motor; a spindle to which a grinding wheel is attached; bevel gears configured to transmit rotation of the motor to the spindle; a motor housing which houses the motor; a gear housing attached to a front side of the motor housing and housing the bevel gears; a spindle case attached to a lower side of the gear housing and rotatably supporting the spindle; a wheel cover attached to the spindle case and covering an outside of at least a part of the grinding wheel; and a stopper configured to prohibit removal of the wheel cover, wherein the stopper may be fastened together with the spindle case by a screw which fastens the spindle case to the gear housing.

公开(公告)号：US20170099018A1

公开(公告)日：2017-04-06

申请号：US15265388

申请日：2016-09-14

Applicant: MAKITA CORPORATION

Inventor： Akira TOMONAGA ,  Masanori FURUSAWA ,  Junya ISHIKAWA

IPC: H02P1/16 ,  H01H9/54 ,  H02H11/00 ,  B24B23/02 ,  B25F5/00

CPC classification number: H02P1/16 ,  B24B23/028 ,  B25F5/00 ,  H01H9/226 ,  H01H9/548 ,  H01H51/06 ,  H02H11/00 ,  H02P3/025 ,  H02P6/20 ,  H02P6/24

Abstract: An electric power tool includes a relay, an electric circuit, and an operation member. The relay has a coil, contacts, and an on-switch. The relay is configured such that the coil is energized when contacts are closed by an on-switch being pressed, and contacts are held in a closed state by an electromagnetic force of coil when coil is energized. In the electric circuit, electric power from power source is supplied to motor and coil of relay, and contacts are connected in series between power source and motor. The operation member is configured to move in reciprocating manner between tool stop position at which the motor stops and tool drive position which the motor runs, where the operation member is configured to locate away from on-switch of the relay at the tool drive position and configured to press the on-switch at a position other than tool drive position.

公开(公告)号：US20230150085A1

公开(公告)日：2023-05-18

申请号：US17914949

申请日：2021-04-08

Applicant: MAKITA CORPORATION

Inventor： Akira MIZUTANI ,  Junya ISHIKAWA ,  Daiki IMAIDA

IPC: B24B49/12 ,  B24B23/02 ,  B24B23/00

CPC classification number: B24B49/12 ,  B24B23/005 ,  B24B23/028

Abstract: A tool includes a first accessory, a second accessory, a first attachment portion configured to allow the first accessory to be detachably attached thereto, a second attachment portion configured to allow the second accessory to be detachably attached thereto, a first intermediate member configured to be displaced from a first non-attachment position to a first attachment position by the attachment of the first accessory to the first attachment portion, a second intermediate member configured to be displaced from a second non-attachment position to a second attachment position by the attachment of the second accessory to the second attachment portion, and a single sensor configured to detect a specific state in which the first intermediate member is located at the first attachment position and the second intermediate member is located at the second attachment position.

公开(公告)号：US20210299813A1

公开(公告)日：2021-09-30

申请号：US17265164

申请日：2019-08-01

Applicant: MAKITA CORPORATION

Inventor： Kenichi TABUSHI ,  Akira MIZUTANI ,  Ken GOTO ,  Kenji SHIBATA ,  Hideharu MUTO ,  Satoshi NINAGAWA ,  Junya ISHIKAWA ,  Takafumi KOTSUJI

IPC: B24B23/02

Abstract: An electric power tool disclosed herein may include a motor; a power transmission mechanism connected to the motor; a housing that houses the motor and the power transmission mechanism; a tip tool holder connected to the power transmission mechanism; a cover covering the tip tool holder partially; a first locking mechanism configured to switch between a first locking state and a first unlocked state; and a second locking mechanism configured to switch between a second locking state and a second unlocked state. In the electric power tool, the cover may become detachable from the housing when the user performs the second unlocking operation on the second locking mechanism and the first unlocking operation on the first locking mechanism.