公开(公告)号：US11850720B2

公开(公告)日：2023-12-26

申请号：US17513553

申请日：2021-10-28

申请人： MAKITA CORPORATION

发明人： Takafumi Kotsuji ,  Shin Nakamura ,  Akira Mizutani ,  Masatoshi Nakahama ,  Yoshihiro Ozeki

IPC分类号： B25F5/00

CPC分类号： B25F5/006

摘要： 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.

公开(公告)号：US11045939B2

公开(公告)日：2021-06-29

申请号：US16256516

申请日：2019-01-24

申请人： MAKITA CORPORATION

发明人： Takafumi Kotsuji ,  Akira Mizutani

IPC分类号： B25F5/02 ,  B25B21/02 ,  B25D16/00 ,  B26D1/30 ,  B27B19/00 ,  B25B23/14 ,  B25F3/00

摘要： A power tool (1), such as a multi-tool, includes: a motor (21) extending in a front-rear direction; a motor housing (2) that houses the motor (21); a head housing (7) held forward of the motor housing (2); and an output shaft (60) protruding downward from the head housing (7). The head housing (7) may be made of a resin. In addition or in the alternative, the head housing (7) includes a lower-head housing case (4) screw fastened to an upper-head housing cover (5). In addition or in the alternative, the motor housing has a two-halved structure in which two half housings (2a, 2b) are screw fastened together.

公开(公告)号：US11964356B2

公开(公告)日：2024-04-23

申请号：US16981247

申请日：2019-03-27

申请人： MAKITA CORPORATION

发明人： Ryosuke Otani ,  Junya Ishikawa ,  Takafumi Kotsuji ,  Satoshi Ninagawa ,  Ken Goto ,  Yu Eto

IPC分类号： B25F5/02 ,  B24B23/02

CPC分类号： B24B23/02 ,  B25F5/02

摘要： 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：US11045938B2

公开(公告)日：2021-06-29

申请号：US15418112

申请日：2017-01-27

申请人： MAKITA CORPORATION

发明人： Junichi Iwakami ,  Shin Nakamura ,  Akira Mizutani ,  Takafumi Kotsuji

IPC分类号： B25F5/02 ,  B25F5/00 ,  B24B23/04 ,  B24B27/08 ,  B27B19/00

摘要： 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.

公开(公告)号：USD783379S1

公开(公告)日：2017-04-11

申请号：US29558412

申请日：2016-03-17

申请人： MAKITA CORPORATION

设计人： Koji Takahashi ,  Akira Mizutani ,  Takafumi Kotsuji

公开(公告)号：US11980991B2

公开(公告)日：2024-05-14

申请号：US17265164

申请日：2019-08-01

申请人： MAKITA CORPORATION

发明人： Kenichi Tabushi ,  Akira Mizutani ,  Ken Goto ,  Kenji Shibata ,  Hideharu Muto ,  Satoshi Ninagawa ,  Junya Ishikawa ,  Takafumi Kotsuji

IPC分类号： B24B23/02

CPC分类号： B24B23/028

摘要： 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.

公开(公告)号：US11772171B2

公开(公告)日：2023-10-03

申请号：US17155712

申请日：2021-01-22

申请人： MAKITA CORPORATION

发明人： Takafumi Kotsuji

IPC分类号： B23B31/18 ,  B24B45/00 ,  B23B31/10 ,  B27B5/30 ,  B23D61/00 ,  B24B23/04

CPC分类号： B23B31/18 ,  B23B31/10 ,  B24B45/006 ,  B27B5/30 ,  B23D61/006 ,  B24B23/04

摘要： 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.

公开(公告)号：USD891213S1

公开(公告)日：2020-07-28

申请号：US29686084

申请日：2019-04-02

申请人： MAKITA CORPORATION

设计人： Kazunori Hattori ,  Takafumi Kotsuji

公开(公告)号：US10688644B2

公开(公告)日：2020-06-23

申请号：US15801731

申请日：2017-11-02

申请人： MAKITA CORPORATION

发明人： Hitoshi Iida ,  Masanori Furusawa ,  Kei Watanabe ,  Takafumi Kotsuji ,  Keisuke Yamada

IPC分类号： B25D11/12 ,  B23B49/00 ,  B25F5/02 ,  B25D17/04 ,  B25D16/00 ,  B25D17/24 ,  H01M2/10 ,  H02K7/14

摘要： 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.

公开(公告)号：US10478943B2

公开(公告)日：2019-11-19

申请号：US15258045

申请日：2016-09-07

申请人： MAKITA CORPORATION

发明人： Shin Nakamura ,  Takafumi Kotsuji ,  Ken Goto ,  Akira Mizutani ,  Junya Ishikawa

IPC分类号： B24B55/05 ,  B24B23/02 ,  B25F5/02

摘要： 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.