公开(公告)号：US20190022841A1

公开(公告)日：2019-01-24

申请号：US16020583

申请日：2018-06-27

Applicant: MAKITA CORPORATION

Inventor： Junpei KAMIMOTO ,  Noriyuki NISHIDO

IPC: B25C1/04

CPC classification number: B25C1/047

Abstract: A driving tool is provided with first and second grease reservoirs for supplying grease to seal rings present on the outer and inner peripheral circumferences of a head valve in contact with a spring guide. Because of this configuration, wearing off of resistance of the seal rings due to gradual loss of grease can be improved and air leakage therefrom can also be prevented, which can improve durability of the driving tool.

公开(公告)号：USD838157S1

公开(公告)日：2019-01-15

申请号：US29605018

申请日：2017-05-23

Applicant: MAKITA CORPORATION

Designer： Wataru Suzuki ,  Hitoshi Iida

公开(公告)号：US10177559B2

公开(公告)日：2019-01-08

申请号：US14596600

申请日：2015-01-14

Applicant: MAKITA CORPORATION

Inventor： Hiroki Uesugi ,  Takuya Umemura ,  Takayoshi Endo ,  Masafumi Noda

IPC: H02H3/20 ,  H02H1/06 ,  H02H7/18 ,  H02J7/00 ,  H02H3/04 ,  H02H3/05

Abstract: An electrically-driven working apparatus in one aspect of an embodiment of the present disclosure comprises: a battery; an abnormality detection unit; a power supply path; a first disconnection unit; a second disconnection unit; and a control unit. The control unit activates the first disconnection unit to disconnect the power supply path if either of an overload or an over discharge of the battery is detected by the abnormality detection unit, and subsequently determines whether discharge from the battery has stopped after activating the first disconnection unit, and activates the second disconnection unit to disconnect the power supply path if discharge from the battery has not stopped.

公开(公告)号：US10173345B2

公开(公告)日：2019-01-08

申请号：US15176479

申请日：2016-06-08

Applicant: MAKITA CORPORATION

Inventor： Fumitoshi Numata ,  Akihiro Goto

IPC: B28D7/02 ,  B23D59/00 ,  B23D45/16 ,  B28D1/04

Abstract: A separation lock member is provided in a main body cover. When a fixing cover is rotated with respect to the main body cover at a predetermined opening/closing angle (opening angle θ1) and then an unlock operation of the separation lock member is performed, a rotation support shaft can be separated from a support groove 23a, such that the main body cover can be separated from the fixing cover.

公开(公告)号：US20180361536A1

公开(公告)日：2018-12-20

申请号：US16000010

申请日：2018-06-05

Applicant: MAKITA CORPORATION

Inventor： Hideharu MUTO ,  Junya ISHIKAWA

IPC: B24B55/05 ,  B24B23/02

Abstract: A grinder may include a motor; a spindle to which a grinding wheel is attached; bevel gears configured to transmit rotation of the motor to the spindle; a motor housing which houses the motor; a gear housing attached to a front side of the motor housing and housing the bevel gears; a spindle case attached to a lower side of the gear housing and rotatably supporting the spindle; a wheel cover attached to the spindle case and covering an outside of at least a part of the grinding wheel; and a stopper configured to prohibit removal of the wheel cover, wherein the stopper may be fastened together with the spindle case by a screw which fastens the spindle case to the gear housing.

公开(公告)号：US20180340652A1

公开(公告)日：2018-11-29

申请号：US15963512

申请日：2018-04-26

Applicant: MAKITA CORPORATION

Inventor： Tomofumi KAWAI ,  Akihito HARA ,  Koji TANAKA ,  Yuki MIWA

IPC: F16N3/12 ,  F16N13/02 ,  F16N23/00

Abstract: A grease discharge device includes a motor, a plunger, a grease supply unit, a pump, a check valve, and a relief valve. The plunger reciprocates by driving of the motor. The grease supply unit supplies grease to a forward movement side with respect to a backward movement side dead center of the plunger. The pump performs a discharge behavior of the grease by the reciprocation of the plunger. The check valve is disposed at a downstream side with respect to a forward movement side dead center of the plunger in a discharge path of the grease inside the pump. The relief valve is disposed between a supply portion of the grease by the grease supply unit and the check valve. The relief valve releases the grease inside the discharge path to the grease supply unit side according to a pressure rise inside the discharge path.

公开(公告)号：US20180337540A1

公开(公告)日：2018-11-22

申请号：US15967919

申请日：2018-05-01

Applicant: MAKITA CORPORATION

Inventor： Hideyuki TAGA

IPC: H02J7/00 ,  H01M10/44

Abstract: A charger is provided with a housing comprising an intake port and an exhaust port. A battery interface is disposed on the housing and is configured to removably receive the battery pack. A charging circuit is disposed within the housing and is configured to supply charging power to a battery pack attached to the battery interface. A blower is provided for introducing air into the housing through the intake port and exhausting air from the housing through the exhaust port. The housing is configured to be mountable on a wall extending in a vertical direction. The exhaust port is located higher in the vertical direction than the intake port when the housing is mounted on the wall.

公开(公告)号：US20180301957A1

公开(公告)日：2018-10-18

申请号：US16011166

申请日：2018-06-18

Applicant: MAKITA CORPORATION

Inventor： Ryosuke HARA ,  Tomohiro UKAI

IPC: H02K7/14 ,  H02K9/06 ,  H02K7/04 ,  H02K7/075 ,  B26D5/14 ,  F16H21/18 ,  B23D49/16

CPC classification number: H02K7/145 ,  B23D49/16 ,  B26D5/14 ,  F16H21/18 ,  H02K7/04 ,  H02K7/075 ,  H02K9/06

Abstract: A reciprocating tool includes a motor, a reciprocating member, and a crank mechanism. The motor is disposed in a housing. The reciprocating member projects from the housing. The crank mechanism converts rotation of a rotation shaft of the motor into reciprocation of the reciprocating member. The crank mechanism rotates around an axis in a lateral direction by rotation transmission from the rotation shaft, and the crank mechanism includes a crank member having an eccentric pin, a connecting rod coupling the eccentric pin to the reciprocating member, and a balancer coupled to the eccentric pin, and the balancer is supported by the eccentric pin alone in the housing.

公开(公告)号：US10099341B2

公开(公告)日：2018-10-16

申请号：US15237050

申请日：2016-08-15

Applicant: MAKITA CORPORATION

Inventor： Yonosuke Aoki

IPC: B24B23/04 ,  B24B45/00 ,  B23D51/10 ,  B27B5/32 ,  B26B7/00

Abstract: A representative power tool has a spindle transmitting a motor driving force to a tool accessory, a tool accessory holding member movable between a holding position and a tool accessory releasing position, a lock mechanism movable between an engaging position for locking the tool accessory holding member in the holding position and a disengaging position for releasing the lock, an inner housing housed in a body housing and houses at least part of the lock mechanism, and an operation mechanism. The operation mechanism includes a handle part, a switching part that switches the lock mechanism between the engaging position and the disengaging position according to the handle part operation, and a switching connection part that is separated from the inner housing when the lock mechanism is placed in the engaging position and comes into contact with the inner housing when the lock mechanism is placed in the disengaging position.

公开(公告)号：US20180290221A1

公开(公告)日：2018-10-11

申请号：US15921078

申请日：2018-03-14

Applicant: MAKITA CORPORATION

Inventor： Yohei OGINO ,  Katsumi OKOUCHI ,  Hiromu GOTO ,  Yuki WADA

IPC: B23D45/16

Abstract: A communication adapter 31 for conducting radio communication between a portable machining device 1 and a dust collector 40, such that the dust collector 40 may operate synchronously with the portable machining device 1 with respect to a start/stop operation when performing a cutting task is detachably incorporated in a handle 20 of the portable machining device 1. Because of this arrangement, a high level of dust-proof ability as well as ease of maneuverability in attaching and detaching the communication adapter 31 can be achieved.