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公开(公告)号：US09903397B2
公开(公告)日：2018-02-27
申请号：US14818685
申请日：2015-08-05
Applicant: MAKITA CORPORATION
Inventor： Yoshiaki Takayanagi , Hiroki Nagase
Abstract: The present invention relates to an oil pump for use in and attached to a device (e.g., chain saw) having an oil-supplied portion requiring an oil supply. An oil pump supplies lubricating oil to a guide groove of a guide bar in such a manner that a plunger having a gear portion meshing with a drive worm provided on a chain saw reciprocally moves in a pump body while rotating. Two guide pins for positioning an oil pump when attaching the oil pump to a chain saw body are provided on an attachment surface of the pump body to the chain saw body. The two guide pins are spaced apart in an axial direction of the plunger, each disposed on a centerline of a transverse cross section of the plunger.
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公开(公告)号：US20180021867A1
公开(公告)日：2018-01-25
申请号：US15625369
申请日：2017-06-16
Applicant: MAKITA CORPORATION
Inventor： Yosuke NAOI , Yasushi OGURA
CPC classification number: B23D49/162 , B23D51/02 , B23D51/16 , B23D51/166
Abstract: A reciprocating saw serving as reciprocating tool is equipped with a motor, a drive transmission mechanism that converts rotation of the motor into reciprocating motion, a rod that is connected to the drive transmission mechanism and that engages in reciprocating motion, and an upper roller and a lower roller that are capable of rolling and that have depressed portions that are capable of coming in contact with the rod, wherein the cross-section of the rod has no corners, and the depressed portions of the upper roller and the lower roller have hourglass-like profiles.
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公开(公告)号：US20180015600A1
公开(公告)日：2018-01-18
申请号：US15647766
申请日：2017-07-12
Applicant: MAKITA CORPORATION
Inventor： Yoshitaka AKIBA
Abstract: A driving tool includes a flywheel, a driver held to be movable between an initial position and a driving position along an movement axis, a ring member configured to transmit rotational energy of the flywheel to the driver, and a driver moving mechanism configured to move the driver with respect to the ring member from the initial position to a transmitting position. When the driver is placed in the initial position, the ring member is disposed loosely around the outer periphery of the flywheel. When the driver is moved to the transmitting position by the driver moving mechanism, the ring member is frictionally engaged with the driver and with the flywheel, rotated by the flywheel, and transmits the rotational energy to the driver, thereby pushing the driver from the transmitting position toward the driving position.
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公开(公告)号：US09847562B2
公开(公告)日：2017-12-19
申请号：US15015263
申请日：2016-02-04
Applicant: MAKITA CORPORATION
Inventor： Eiji Kondo
IPC: H01M10/6566 , H01M10/613 , H01M10/6235 , H01M10/643 , H01M10/6563 , H01M2/10
CPC classification number: H01M10/6566 , H01M2/1055 , H01M10/613 , H01M10/6235 , H01M10/643 , H01M10/6563 , H01M2220/30
Abstract: As a cooling draft flows from a rear side to a front side of battery cells (72) inside a battery pack (30), it is divided into two cooling drafts (F1, F2) in a left-right direction, which is the direction that the battery cells (72) are disposed in parallel, and those two cooling drafts respectively flow through a plurality of passageways that longitudinally extend along the battery cells (72). More particularly, a second battery cell (722) is cooled by the cooling draft flowing in a second ventilation-path volume (Q2) before a first battery cell (721) and a third battery cell (723) are cooled by cooling drafts respectively flowing in a first ventilation-path volume (Q1) and a third ventilation-path volume (Q3), which are longer than the second ventilation-path volume (Q2).
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公开(公告)号：US09845721B2
公开(公告)日：2017-12-19
申请号：US15152263
申请日：2016-05-11
Applicant: MAKITA CORPORATION
Inventor： Michael Schönfeld
CPC classification number: F02B33/04 , F02B25/20 , F02B75/02 , F02B2075/025 , F02M26/01 , Y02T10/146
Abstract: A combustion engine having a crankcase and a cylinder, wherein a piston is guided to be movable in strokes inside cylinder, piston movably limiting a combustion chamber, and wherein in cylinder at least one transfer port is inserted, which extends between crankcase and combustion chamber, and through which an ignition mixture can flow from crankcase into combustion chamber, and which opens out into combustion chamber in an upper discharge area in such a way that ignition mixture preferably does not reach transfer ports and thus the crankcase, while at the same time a direct connection of crankcase to combustion chamber is maintained via a transfer port, which is as short as possible, it is suggested that at least one storage chamber is provided which is connected to upper discharge area and in which exhaust gas flowing from the combustion chamber into discharge area can be temporarily stored.
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Patent Agency Ranking
公开(公告)号：US09844849B2
公开(公告)日：2017-12-19
申请号：US14597806
申请日：2015-01-15
Applicant: MAKITA CORPORATION
Inventor： Seitaro Hayashi , Goshi Ishikawa , Tatsuki Mori , Motohiro Omura , Tatsuya Yoshizaki
CPC classification number: B23Q17/2404 , B25B21/00 , B25B23/12 , B25B23/18 , B25F5/00 , B25F5/021 , H01H9/06
Abstract: A motor driven appliance in one aspect of embodiments of the present disclosure comprises a light source, a lighting unit, a motor, an operation unit, an operation detector, a reference signal output unit, a determination unit, and a control unit. The operation detector detects that the operation unit is operated, and outputs an operation detection signal that indicates that the operation unit is operated. The reference signal output unit outputs at least one reference signal that can be used as a reference for determining whether the detection by the operation detector is normal. The determination unit determines whether the operation unit is actually operated based on the operation detection signal and the at least one reference signal. The control unit controls operation of the lighting unit based on the determination made by the determination unit.
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公开(公告)号：US20170346530A1
公开(公告)日：2017-11-30
申请号：US15593465
申请日：2017-05-12
Applicant: MAKITA CORPORATION
Inventor： Hironori OGURA , Junichi MURAKAMI
IPC: H04B5/00
CPC classification number: H04B5/0037 , H04B5/0031 , H04B5/0062
Abstract: An information communication apparatus in one aspect of the present disclosure comprises a controller and a proximity wireless communication device. The controller performs a control process including at least transmission and/or reception of information between the information communication apparatus and at least one information holding apparatus. The at least one information holding apparatus comprises a battery pack and/or a field electric apparatus. The proximity wireless communication device communicates the information via the proximity wireless communication with an operation apparatus different from the at least one information holding apparatus.
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公开(公告)号：US20170335582A1
公开(公告)日：2017-11-23
申请号：US15593446
申请日：2017-05-12
Applicant: MAKITA CORPORATION
Inventor： Yoshitaka MACHIDA , Tadasuke MATSUNO
IPC: E04G21/12
CPC classification number: E04G21/122 , E04G21/123
Abstract: A rebar tying tool configured to tie plural rebars using a wire is disclosed herein. The rebar tying tool may include a reel supporting mechanism configured to switch between a first state of detachably supporting a reel on which the wire is wound and a second state of undetachably supporting the reel; a wire feeding mechanism configured to feed the wire from the reel; and an openable cover that at least partially covers at least one of the reel supporting mechanism and the wire feeding mechanism. The reel supporting mechanism may switch from the first state to the second state by a user operation of closing the cover, and/or may switch from the second state to the first state by a user operation of opening the cover.
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359.发明申请公开(公告)号：US20170306900A1
公开(公告)日：2017-10-26
申请号：US15476458
申请日：2017-03-31
Applicant: MAKITA CORPORATION
Inventor： Manfred DÖRING
IPC: F02M35/02 , F02M35/024 , B01D46/52 , B01D45/12 , F02M35/022 , B01D50/00 , F02M35/10
CPC classification number: F02M35/0216 , B01D45/12 , B01D46/52 , B01D50/002 , B01D2279/60 , F02M35/022 , F02M35/0223 , F02M35/0226 , F02M35/024 , F02M35/08 , F02M35/1017 , Y02T10/146
Abstract: An air filter device for filtering the intake air of a combustion engine of a hand-held small tool, in particular an angle grinder, with a pre-filter stage having at least one cyclone air filter and with a main filter stage arranged downstream, having a permeable filter body, characterized in that a pre-separation device for pre-separating contaminations in the intake air is installed upstream of the intake air in front of the cyclone air filter, wherein the pre-separation device is configured in such a way that separated contaminations can be removed from the outside of the small tool.
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公开(公告)号：US20170306817A1
公开(公告)日：2017-10-26
申请号：US15423876
申请日：2017-02-03
Applicant: MAKITA CORPORATION
Inventor： Masayoshi OKUMI
IPC: F01N1/08
CPC classification number: F01N1/083 , F01N2590/06
Abstract: A muffler for an engine is provided. A muffler (50) according to an embodiment of the present invention includes a box-shaped housing (51), and a partition (56) that divides the inside of the housing (51) into a first chamber (61) and a second chamber (62). The partition (56) includes a main body portion (56a) in the form of a flat plate, and a concave portion (56b) that protrudes toward the second chamber (62). Exhaust gas, having flowed from an inlet (52a) of the housing (51) into the first chamber (61), passed a through hole (57) of the main body portion (56a), and reached one side in the second chamber (62), flows inside the second chamber (62) so as to bypass a second concave portion (56b2) of the concave portion (56b) and then passes the other side in the second chamber (62) to reach an outlet (53a) of the housing (51).
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