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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.
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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
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。
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公开(公告)号：US20240066678A1
公开(公告)日：2024-02-29
申请号：US18388244
申请日：2023-11-09
Applicant: MAKITA CORPORATION
Inventor： Takafumi KOTSUJI , Shin NAKAMURA , Akira MIZUTANI , Masatoshi NAKAHAMA , Yoshihiro OZEKI
IPC: B25F5/00
CPC classification number: B25F5/006
Abstract: A power tool includes a motor, a spindle, an inner housing, an outer housing formed by an upper member and a lower member, a pair of interposing members and a pair of elastic members. The interposing members are arranged leftward and rightward of the inner housing, respectively, and fixedly connected to a first member, which is one of the upper member and the lower member, and at least partially in contact with an inner surface of the first member. The elastic members are held between a left portion of the inner housing and one of the interposing members and between a right portion of the inner housing and the other of the interposing members, respectively. A first end portion of each of the interposing members has at least one first surface extending to be closer to the inner housing toward a tip end of the first end portion.
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公开(公告)号：US20180126534A1
公开(公告)日：2018-05-10
申请号：US15801731
申请日：2017-11-02
Applicant: MAKITA CORPORATION
Inventor： Hitoshi IIDA , Masanori FURUSAWA , Kei WATANABE , Takafumi KOTSUJI , Keisuke YAMADA
CPC classification number: B25D11/12 , B23B49/003 , B23B2260/128 , B25D16/003 , B25D17/043 , B25D17/24 , B25D2211/003 , B25D2211/068 , B25D2216/0015 , B25D2216/0023 , B25D2216/0084 , B25D2250/121 , B25D2250/221 , B25D2250/265 , B25F5/02 , H01M2/1022 , H01M2/1094 , H01M2220/30 , H02K7/145
Abstract: A power tool includes a motor, a housing, a battery mounting part, and a battery protection part. The battery mounting part is provided to the housing on an opposite side from a working axis across the motor in an extending direction of a rotation axis of the motor. The battery mounting part is configured such that one end portion of at least one battery is mounted to the battery mounting part and an opposite end portion of the at least one battery in the extending direction of the rotation axis is exposed from the housing. The battery protection part is provided to an outer surface portion of the housing and configured to protect at least one corner region of the opposite end portion of the at least one battery against external force when the one end portion is mounted to the battery mounting part.
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公开(公告)号：US20240173821A1
公开(公告)日：2024-05-30
申请号：US18516436
申请日：2023-11-21
Applicant: MAKITA CORPORATION
Inventor： Tatsuya NAKAMURA , Hiroki KANEKO , Yunosuke TANAKA , Yukiya MATSUOKA , Takahiro KAWAKAMI , Takafumi KOTSUJI
CPC classification number: B24B55/052 , B25F5/02 , B24B23/028
Abstract: A power tool includes a spindle, a housing, a cover body configured to be removably mounted to the housing, a first engagement part provided on or in the cover body, and a second engagement part provided on or in the housing. The cover body includes an upper plate part and an outer peripheral part. The second engagement part is movable between an engagement position and a disengagement position. The first and second engagement parts are configured to restrict rotation of the cover body around the drive axis relative to the housing by engaging with each other. The first engagement part is (i) at a same location as or radially outward of the outer peripheral part of the cover body in a radial direction orthogonal to the drive axis, and (ii) between an upper end and a lower end of the cover body in the up-down direction.
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Patent Agency Ranking
公开(公告)号：US20220134528A1
公开(公告)日：2022-05-05
申请号：US17513553
申请日：2021-10-28
Applicant: MAKITA CORPORATION
Inventor： Takafumi KOTSUJI , Shin NAKAMURA , Akira MIZUTANI , Masatoshi NAKAHAMA , Yoshihiro OZEKI
IPC: B25F5/00
Abstract: A power tool includes a motor, a spindle, an inner housing, an outer housing formed by an upper member and a lower member, a pair of interposing members and a pair of elastic members. The interposing members are arranged leftward and rightward of the inner housing, respectively, and fixedly connected to a first member, which is one of the upper member and the lower member, and at least partially in contact with an inner surface of the first member. The elastic members are held between a left portion of the inner housing and one of the interposing members and between a right portion of the inner housing and the other of the interposing members, respectively. A first end portion of each of the interposing members has at least one first surface extending to be closer to the inner housing toward a tip end of the first end portion.
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公开(公告)号：US20170225316A1
公开(公告)日：2017-08-10
申请号：US15418112
申请日：2017-01-27
Applicant: MAKITA CORPORATION
Inventor： Junichi IWAKAMI , Shin NAKAMURA , Akira MIZUTANI , Takafumi KOTSUJI
Abstract: Several means 71, 72, 73, 74, and 75 are provided for restricting a relative displacement in a separating direction of half-split housings 50L, 50R. At one or more of several screw-connection parts 60 of the left and right half-split housings 50L, 50R, a press-fitting protrusion 71a is provided in an insertion hole 62a of a boss-receiving part 62 into which a screw-boss part 61 is inserted. By press-fitting the screw-boss part 61 to the boss-receiving part 62, a separation resistance may be introduced between the left and right half-split housings 50L, 50R.
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公开(公告)号：US20230119351A1
公开(公告)日：2023-04-20
申请号：US17914880
申请日：2021-04-08
Applicant: MAKITA CORPORATION
Inventor： Shin SUGIURA , Takafumi KOTSUJI , Ryosuke OTANI , Fumiyoshi SAITO
IPC: B24B23/02
Abstract: A tool includes a first accessory, at least two first attachment portions for detachably and selectively attaching the first accessory, and a single first intermediate member provided in common for the at least two first attachment portions. The first intermediate member includes at least one pressed portion configured to, when the first accessory is attached to one first attachment portion arbitrarily selected from the at least two first attachment portions, be directly or indirectly pressed by the first accessory. The first intermediate member is configured to be displaced when the at least one pressed portion is pressed. The tool further includes a single first sensor configured to detect that the first intermediate member is displaced.
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公开(公告)号：US20220168867A1
公开(公告)日：2022-06-02
申请号：US17536311
申请日：2021-11-29
Applicant: MAKITA CORPORATION
Inventor： Shin NAKAMURA , Takafumi KOTSUJI , Masatoshi NAKAHAMA
Abstract: A dust collecting attachment removably attachable to a power tool that includes a housing and a spindle: a covering part formed such that a drive axis of a spindle passes through the inside of a suction hole in the attached state of the power tool and at least partially covers a periphery of the tool mounting part; a discharging part connected to the covering part and configured to discharge dust from the inside of the covering part; and at least one elastically deformable engagement piece connected to the covering part and having a claw configured to engage with the housing at a predetermined position of the housing.
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公开(公告)号：US20210252667A1
公开(公告)日：2021-08-19
申请号：US17155712
申请日：2021-01-22
Applicant: MAKITA CORPORATION
Inventor： Takafumi KOTSUJI
Abstract: A power tool includes a spindle, holding members each having a claw, a biasing member, and a locking member. The holding members are movable between a first position, in which the holding members fixedly hold a tool accessory against a tool mounting part of the spindle with the claws pressed against the tool accessory owing to a biasing force of the biasing member, and a second position, in which the holding members do not impede or block attachment or detachment of the tool accessory. The locking member is configured to move between a locking position, in which the locking member abut on the claws of the holding members to hold the holding members in the second position, and an unlocking position, in which the locking member does not impede or block the holding members from moving from the second position to the first position.
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