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公开(公告)号：US20200282353A1
公开(公告)日：2020-09-10
申请号：US16806153
申请日：2020-03-02
Applicant: MAKITA CORPORATION
Inventor： Hideaki TAKANO , Makoto HOTTA , Takayuki TAHARA
Abstract: A backpack dust collector includes a housing, a slit portion, and a noise-absorbing member. The housing includes a suction port, a dust collecting chamber, a motor chamber, and an exhaust port. The dust collecting chamber is connected to the suction port and configured to accommodate a dust collecting bag. The motor chamber is connected to the dust collecting chamber and accommodates a fan and a motor. Through the exhaust port, air from the motor chamber is discharged. The slit portion is disposed in a flow path between the motor chamber and the exhaust port and includes at least one slit-shaped vent through which air from the motor chamber passes. The noise-absorbing member is disposed in at least part of a flow path between the vent and the exhaust port.
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公开(公告)号：US20200281424A1
公开(公告)日：2020-09-10
申请号：US16783312
申请日：2020-02-06
Applicant: MAKITA CORPORATION
Inventor： Takayuki TAHARA , Makoto HOTTA
Abstract: A backpack dust collector includes a housing and a filter. The housing includes a suction port, a dust collecting chamber connected to the suction port and accommodating a dust collecting bag, a motor chamber connected to the dust collecting chamber and accommodating a fan and a motor, and an exhaust port through which air from the motor chamber is discharged. The filter is disposed on a side of the dust collecting chamber so as to face the dust collecting chamber.
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公开(公告)号：US20200260644A1
公开(公告)日：2020-08-20
申请号：US16787140
申请日：2020-02-11
Applicant: MAKITA CORPORATION
Inventor： Yoshitaka ICHIKAWA
Abstract: An electric working machine includes an attachment portion, a motor, and a controller. Multiple types of tip tools are alternatively attached to the attachment portion. The motor drives the tip tool attached to the attachment portion. The controller has first start control and second start control. The controller is configured to execute the first start control so as to determine the type of the tip tool when not having tool type information, and configured to execute the second start control when having the tool type information.
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公开(公告)号：US10749360B2
公开(公告)日：2020-08-18
申请号：US16508950
申请日：2019-07-11
Applicant: MAKITA CORPORATION
Inventor： Nobuyasu Furui , Hitoshi Suzuki , Masaaki Fukumoto , Takuya Umemura , Kosuke Ito , Hitoshi Sengiku , Shuji Yoshikawa , Tatsuya Nagahama
Abstract: A power tool system includes a hand-held power tool having a power tool housing accommodating a motor, and a battery pack interface electrically connected to the motor within the power tool housing. A battery pack includes a battery pack housing accommodating at least one battery cell and a power tool interface electrically connected to the at least one battery cell within the battery pack housing. The power tool interface is configured to be physically and electrically connected to and disconnected from the battery pack interface of the power tool. A communicator is attached to or accommodated within the battery pack housing. The communicator is configured to wirelessly communicate with an external device.
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公开(公告)号：US20200245835A1
公开(公告)日：2020-08-06
申请号：US16782217
申请日：2020-02-05
Applicant: MAKITA CORPORATION
Inventor： Junichi IWAKAMI , Takayuki TAHARA
Abstract: A vacuum cleaner (1; 1B) includes a housing (2; 100) that houses a fan (7) and a motor (8), which generates power that rotates the fan (7); one or more air-exhaust ports (10), which is provided in at least a portion of the housing (2; 100); and a sound-absorbing member (33) having a through hole (33). The sound-absorbing member (33) is disposed in an interior space of the housing (2; 100) so as to face the air-exhaust port(s) (10).
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Patent Agency Ranking
公开(公告)号：US20200238483A1
公开(公告)日：2020-07-30
申请号：US16728094
申请日：2019-12-27
Applicant: MAKITA CORPORATION
Inventor： Takeshi KAMIYA
IPC: B25B21/02
Abstract: A power tool allows mode switching and clutch operation torque switching using a single ring. An electric vibration driver drill includes an internal gear that meshes with planetary gears, an internal gear lock pin that moves forward relative to the internal gear to lock the internal gear, a first vibration cam fixed to a spindle, a second vibration cam that rubs against the first vibration cam and rotate relative to a gear housing, a vibration switch lever that moves forward relative to the second vibration cam to lock the second vibration cam in a nonrotatable manner, and an annular change ring that switches between forward movement and rearward movement of the internal gear lock pins and switches between forward movement and rearward movement of the vibration switch lever.
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公开(公告)号：US20200230787A1
公开(公告)日：2020-07-23
申请号：US16633103
申请日：2018-07-24
Applicant: MAKITA CORPORATION
Inventor： Ding ZHAO
Abstract: An electric ratchet wrench as one example of the ratchet wrench includes an electric motor, a holder that rotatably holds a socket via a one-way clutch mechanism, and a spindle configured to convert a driving force from the motor into a reciprocating rotation motion of the holder. A space is provided between the socket and the holder. The space includes large interval portions and small interval portions. The small interval portions are adjacent to the large interval portions in a rotation direction (lock direction) of the socket and have distances smaller than distances of the large interval portions. Additionally, the one-way clutch mechanism includes columnar locking pins disposed between the spaces and have a diameter with a size equal to or less than the distances of the large interval portions and exceeding the distances of the small interval portions.
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公开(公告)号：US10720822B2
公开(公告)日：2020-07-21
申请号：US15609501
申请日：2017-05-31
Applicant: MAKITA CORPORATION
Inventor： Akira Niwa
Abstract: In a brushless motor comprising a stator core having a plurality of teeth that protrude therefrom in radial directions, a front insulator which is attached to the stator core and which has a plurality of insulating portions that protrude therefrom along the direction of protrusion of the respective teeth, and a plurality of coils formed by magnet wire wound about each of the insulating portions at the respective teeth, a top face of the respective insulating portions of the front insulator is provided in advance with a deformable rib which is capable of being deformed by tension of the magnet wire wound thereabout, and the magnet wire is wound about the deformable rib to form the coils as the deformable rib is made to deform in correspondence to the external shape of the magnet wire.
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公开(公告)号：US20200214517A1
公开(公告)日：2020-07-09
申请号：US16638047
申请日：2018-07-18
Applicant: MAKITA CORPORATION
Inventor： Akinori ITO , Yasutoshi SHINMA
Abstract: A main unit and a hose of a cleaner may be connected via a connecting portion constituted by a ball joint. The hose may be wound around a hose holding portion and stored at a front end storage so that it can be held to the main unit in a compact manner.
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公开(公告)号：US20200212837A1
公开(公告)日：2020-07-02
申请号：US16715560
申请日：2019-12-16
Applicant: MAKITA CORPORATION
Inventor： Yoshitaka ICHIKAWA , Akihiro NAKAMOTO
IPC: H02P29/024 , H02P27/06 , A01G3/053 , A01G3/06
Abstract: An electric working machine in one aspect of the present disclosure includes two or more circuits and a control circuit. The control circuit executes two or more diagnoses one by one in order. The diagnoses at least include a first diagnosis and a second diagnosis. The first diagnosis diagnoses a first circuit. The second diagnosis diagnoses a second circuit. The control circuit executes the first diagnosis or the second diagnosis at a first diagnosis timing. The control circuit executes the first diagnosis or the second diagnosis at a second diagnosis timing. The second diagnosis timing follows the first diagnosis timing.
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