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公开(公告)号：US20180297186A1
公开(公告)日：2018-10-18
申请号：US15946029
申请日：2018-04-05
Applicant: MAKITA CORPORATION
Inventor： Hitoshi IIDA , Masanori FURUSAWA , Hirokatsu YAMAMOTO , Ryo UMEMOTO , Yoshinori SASAKI , Akira NAITO
Abstract: An impact tool includes a motor, a driving mechanism, and a vibration sensor. The driving mechanism is configured to perform a hammering operation of linearly driving a tool accessory along an impact-axis by power of the motor. The impact-axis extends in a front-rear direction of the impact tool. The vibration sensor is configured to detect vibrations. The vibration sensor is disposed such that the vibration sensor is capable of detecting vibrations of a first frequency among vibrations caused in the impact tool, and such that transmission of vibrations of a second frequency to the vibration sensor is suppressed. The vibrations of the first frequency result from the hammering operation. The second frequency is different from the first frequency.
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公开(公告)号：US20150244197A1
公开(公告)日：2015-08-27
申请号：US14625000
申请日：2015-02-18
Applicant: Makita Corporation
Inventor： Hideyuki TAGA , Yasuhiro TABUCHI , Mamoru SAKAI , Akira NAITO
CPC classification number: H02J7/0045 , H02J5/00 , H02J7/0042 , H02J7/0068 , H02J7/02
Abstract: In one aspect according to the present teachings, a battery charger may include a body housing and a power supply connector disposed at a lateral side of the body housing. The power supply connector can supply a DC power to an external device.
Abstract translation: 在根据本教导的一个方面，电池充电器可以包括主体外壳和设置在主体外壳的侧面的电源连接器。 电源连接器可以为外部设备提供直流电源。
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公开(公告)号：US20150194710A1
公开(公告)日：2015-07-09
申请号：US14589311
申请日：2015-01-05
Applicant: MAKITA CORPORATION
Inventor： Akira NAITO
CPC classification number: H01M10/486 , H01M2/1055 , H01M10/482 , H01M2200/10 , H01M2220/30
Abstract: A battery pack includes a case, a battery device, an intervening member and a temperature detection device. The battery device may be disposed within the case and include a cell holder configured to accommodate a plurality of battery cells. The intervening member may be provided between the cell holder and at least one of the plurality of cell holder. The temperature detection device may be disposed between the intervening member and at least one of the plurality of cell holder, so that the temperature detection device directly contacts at least one of the battery cells for detecting a temperature thereof. At least one of the cell holder and the intervening member may have an elasticity, so that the temperature detection device may be directly pressed against at least one of the battery cells due to an elastic deformation of the least one of the cell holder and the intervening member.
Abstract translation: 电池组包括壳体，电池装置，中间构件和温度检测装置。 电池装置可以设置在壳体内并且包括被配置为容纳多个电池单元的电池座。 中间构件可以设置在电池保持器和多个电池保持器中的至少一个之间。 温度检测装置可以设置在中间构件和多个电池座中的至少一个之间，使得温度检测装置直接接触用于检测其温度的电池单元中的至少一个。 细胞保持器和中间构件中的至少一个可以具有弹性，使得温度检测装置可以由于电池座中的至少一个弹性变形而直接压在电池单元中的至少一个上，并且中间 会员。
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公开(公告)号：US20140302376A1
公开(公告)日：2014-10-09
申请号：US14242049
申请日：2014-04-01
Applicant: MAKITA CORPORATION
Inventor： Akira NAITO
IPC: H01M2/10
CPC classification number: H01M2/1055 , H01M2/105 , H01M2220/30
Abstract: A front pressing rib is formed integrally with the cell holder. The front pressing rib bridges a dimensional difference between the inside of the case to be assembled and the cell holder by generating a pressing force on the front side. That is, the cell holder is pressed rearward in the case by a pressing force of the front pressing rib that is applied to the inside of the case. The front pressing rib serves to completely bridge the dimensional difference when the cell holder is inserted into the case.
Abstract translation: 与电池座一体地形成有前加压肋。 前按压肋通过在前侧产生按压力来桥接待组装的壳体的内部与电池座之间的尺寸差。 也就是说，通过施加到壳体内部的前按压肋的按压力，电池座在壳体中向后压。 当电池座插入壳体时，前按压肋用于完全桥接尺寸差异。
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公开(公告)号：US20230150104A1
公开(公告)日：2023-05-18
申请号：US17949687
申请日：2022-09-21
Applicant: MAKITA CORPORATION
Inventor： Akira NAITO
CPC classification number: B25D17/11 , B25D17/04 , B25D2250/121
Abstract: A power tool is less likely to generate noise. A power tool includes a housing, a field fixed to the housing and including a field coil, an armature rotatable relative to the field and including a commutator, two brushes that come in contact with the commutator, and a brush holder unit holding the two brushes. The brush holder unit includes two contact rails electrically connectable to the field coil, two first terminals that each come in contact with either of the two contact rails, two second terminals each electrically connectable to a corresponding brush of the two brushes, and a choke coil located between at least one of the two first terminals and at least one of the two second terminals.
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Patent Agency Ranking
公开(公告)号：US20210098756A1
公开(公告)日：2021-04-01
申请号：US17036411
申请日：2020-09-29
Applicant: MAKITA CORPORATION
Inventor： Akira NAITO , Tatsuya NAGAHAMA
Abstract: A battery pack (2; 602) includes: an outer case (12; 612); one or more battery cells (90a-90j); and a cell case (80), which is housed in the outer case (12; 612) and houses the battery cell(s) (90a-90j). The outer case (12; 612) has: an upper surface (wall) (14b), in which a terminal-opening part (22a) for exposing a terminal (102) is provided; a bottom wall (15e); and a plurality of side surfaces (walls) (15a-15d) extending upward from the bottom wall (15e). The battery cell(s) (90a-90j) is (are) disposed parallel to the bottom wall (15e). An opening (40a-40j) is provided in a specific side surface (15b, 15d), from among the plurality of side surfaces (15a-15d), that faces an end surface of the battery cell(s) (90a-90j) in a longitudinal direction.
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公开(公告)号：US20210057968A1
公开(公告)日：2021-02-25
申请号：US17090240
申请日：2020-11-05
Applicant: MAKITA CORPORATION
Inventor： Kei KOUDA , Akira NAITO , Hideki ABE
Abstract: An electric work machine includes a brushless motor including a stator including a stator core, an electrical insulator located on the stator core, and at least one coil wound around the stator core with the electrical insulator in between, and a rotor rotatable with respect to the stator, and an output unit drivable by the brushless motor. The stator core has a through-hole and/or a recess to lock rotation of the stator with a screw.
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公开(公告)号：US20230011554A1
公开(公告)日：2023-01-12
申请号：US17852065
申请日：2022-06-28
Applicant: MAKITA CORPORATION
Inventor： Jie CHEN , Katsuhito FUJINAMI , Hong Jun PANG , Ya WANG , Fuchao LUAN , Akira NAITO
Abstract: An electric work machine in one aspect of the present disclosure includes an electric power input terminal, a motor, a circuit board, a first heat dissipation plate, and a second heat dissipation plate. The circuit board includes a first surface and an electronic circuit on the first surface. The electronic circuit controls supply of AC power to the motor. The electronic circuit includes an electronic component that generates Joule heat. The first heat dissipation plate is spaced from the first surface by a first distance in parallel to the first surface. The second heat dissipation plate is spaced from the first surface by a second distance in parallel to the first surface. The second heat dissipation plate is thermally coupled with the first heat dissipation plate. The second distance is smaller than the first distance.
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公开(公告)号：US20220320939A1
公开(公告)日：2022-10-06
申请号：US17596745
申请日：2020-06-19
Applicant: MAKITA CORPORATION
Inventor： Akira NAITO
Abstract: An electric work machine (1) includes a motor (8) having a rotor (23) disposed within a stator core (31) and coils (34) disposed on the stator core; a power-transmission mechanism (10) driven by the rotor; and an output shaft (6), on which a tool accessory is mountable and which is operably driven by the power-transmission mechanism. The stator core includes an outer-side member (40) having projection parts (42) protruding radially inward from a circular-ring part (41) in a spaced apart manner in a circumferential direction of the stator core and respectively supporting the coils; and an inner-side member (43) disposed radially inward of the outer-side member and coupled to inner-end portions of the projection parts. A plurality of first insulators (32) and a plurality of second insulators (33) may be respectively disposed around the projection parts and interconnected in an alternating manner in the circumferential direction.
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公开(公告)号：US20200052558A1
公开(公告)日：2020-02-13
申请号：US16460149
申请日：2019-07-02
Applicant: MAKITA CORPORATION
Inventor： Kei KOUDA , Akira NAITO , Hideki ABE
Abstract: An electric work machine includes a brushless motor including a stator including a stator core, an electrical insulator located on the stator core, and at least one coil wound around the stator core with the electrical insulator in between, and a rotor rotatable with respect to the stator, and an output unit drivable by the brushless motor. The stator core has a through-hole and/or a recess to lock rotation of the stator with a screw.
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