公开(公告)号：US10315300B2

公开(公告)日：2019-06-11

申请号：US15148339

申请日：2016-05-06

Applicant: MAKITA CORPORATION

Inventor： Hiroki Ikuta ,  Ken Yamauchi ,  Takamasa Hanai ,  Masao Miwa ,  Tomohiro Ukai ,  Shusaku Wakatsuki ,  Akihiro Ito

IPC: B25D17/22 ,  B23Q11/00 ,  B25D17/20 ,  B25F5/02

Abstract: A dust collection device, that collects dust particles generated by an impact tool, has a feature that enables the attachment of the device to the impact tool, which is not provided with an attachment section for the device. The dust collection device has a tool body and an auxiliary handle, attached removably to the tool body, and is attached to an electric hammer that, in the lengthwise direction, linearly operates a tool bit mounted to the tip region of the tool body, and collects dust generated by the electric hammer. The dust collection device has: a dust collection unit that has a dust intake port at the tip; a dust collection hose, connected to the dust collection unit, for transferring dust to the downstream side; and a hose-holding unit that holds the dust collection hose. The hose-holding unit can be attached to and removed from the auxiliary handle.

公开(公告)号：US11832666B2

公开(公告)日：2023-12-05

申请号：US17567378

申请日：2022-01-03

Applicant: MAKITA CORPORATION

Inventor： Ken Yamauchi

IPC: A41D27/28 ,  F04D25/08

CPC classification number: A41D27/28 ,  F04D25/084

Abstract: A ventilation apparatus includes a motor, a fan, a housing, and a ring. A projection protrudes from one of an outer peripheral surface of a peripheral wall part of the housing and an inner peripheral surface of the ring, whereas an engagement wall and a guide wall are provided on the other of the outer peripheral surface of the peripheral wall part of the housing and the inner peripheral surface of the ring. The guide wall has a guide surface configured to guide the ring rearward relative to the housing and to guide the projection to an engagement position at which the projection is abuttable on an engagement surface of the engagement wall. In a direction in which the projection moves away from the guide surface in a front-rear direction, an open space extends from the guide surface to an area that corresponds to an end of the second surface.

公开(公告)号：US10144110B2

公开(公告)日：2018-12-04

申请号：US15351659

申请日：2016-11-15

Applicant: MAKITA CORPORATION

Inventor： Masanori Furusawa ,  Ken Yamauchi

IPC: B24B45/00 ,  B24B23/04 ,  B27B5/32 ,  B25F5/00 ,  B23B31/10 ,  B23Q3/12 ,  B25F3/00 ,  B27B19/00 ,  B23B31/107 ,  B23B31/40 ,  B23B31/19

Abstract: A power tool for driving an accessary removably held between first and second clamp parts includes a first shaft having the first clamp part, a second shaft for moving the second clamp part, a holding member movable relative to the second shaft, a moving member for moving the holding member, and a biasing member for biasing the moving member. The second shaft is disposed inside the first shaft. The holding member enables the second clamp part and the first clamp part to hold the tool accessary therebetween in a first position, and disables the second clamp part and the first clamp part from holding the tool accessary in a second position. The moving member moves the holding member from the first position to the second position, and the biasing member biases the moving member when the holding member is located in the second position.

公开(公告)号：US12218538B2

公开(公告)日：2025-02-04

申请号：US17680459

申请日：2022-02-25

Applicant: MAKITA CORPORATION

Inventor： Katsuhito Fujinami ,  Ken Yamauchi ,  Yasuyuki Fujimoto

IPC: H02J7/00 ,  A41D1/00 ,  H01M50/204 ,  H01M50/247

Abstract: A voltage control device in one aspect of the present disclosure includes an appliance connector, a voltage output circuit, a manual switch, and a controller. The voltage output circuit outputs an operating voltage based on a direct voltage received from a direct-current power source. In response to a first electric appliance being connected to the appliance connector, the controller controls the voltage output circuit so as to fix the operating voltage. In response to a second electric appliance being connected to the appliance connector, the controller controls the voltage output circuit so as to vary the operating voltage in accordance with a manual operation applied to the manual switch.

公开(公告)号：US20150042052A1

公开(公告)日：2015-02-12

申请号：US14376416

申请日：2013-01-28

Applicant: MAKITA CORPORATION

Inventor： Masanori Furusawa ,  Ken Yamauchi

IPC: B23Q3/12 ,  B23B31/10 ,  B25F5/00

CPC classification number: B24B45/006 ,  B23B31/10 ,  B23B31/107 ,  B23B31/19 ,  B23B31/4073 ,  B23Q3/12 ,  B24B23/04 ,  B25F3/00 ,  B25F5/00 ,  B27B5/32 ,  B27B19/006 ,  Y10T279/33

Abstract: A power tool includes a spindle and a clamp shaft, and drives a tool accessory clamped by an outer flange and a clamp head. A ball or a grooved clamping element is configured to hold the clamp shaft against the spindle in a fixed manner. A holding element holds and moves the ball or grooved clamping element. A coil spring biases the holding element. The ball or grooved clamping element is movable between a first position where it holds the clamp shaft and a second position where it does not hold the clamp shaft. The holding element is capable of moving the ball or the grooved clamping element from the first position to the second position. The coil spring biases the holding element and prevents movement of the holding element when the ball or the grooved clamping element is located in the second position.

Abstract translation: 电动工具包括主轴和夹紧轴，并驱动由外凸缘和夹头夹住的工具附件。 球或沟槽夹紧元件构造成以固定的方式将夹紧轴保持在主轴上。 保持元件保持并移动球形或槽形夹紧元件。 螺旋弹簧偏压保持元件。 球形或槽形夹紧元件可在其保持夹紧轴的第一位置和不夹持夹紧轴的第二位置之间移动。 保持元件能够将球或带槽的夹紧元件从第一位置移动到第二位置。 螺旋弹簧偏压保持元件，并且当球或带槽的夹紧元件位于第二位置时防止保持元件的移动。

公开(公告)号：US09545699B2

公开(公告)日：2017-01-17

申请号：US14376416

申请日：2013-01-28

Applicant: MAKITA CORPORATION

Inventor： Masanori Furusawa ,  Ken Yamauchi

IPC: B24B45/00 ,  B23Q3/12 ,  B24B23/04 ,  B27B5/32 ,  B25F5/00 ,  B23B31/10 ,  B25F3/00 ,  B23B31/107 ,  B23B31/40 ,  B23B31/19

CPC classification number: B24B45/006 ,  B23B31/10 ,  B23B31/107 ,  B23B31/19 ,  B23B31/4073 ,  B23Q3/12 ,  B24B23/04 ,  B25F3/00 ,  B25F5/00 ,  B27B5/32 ,  B27B19/006 ,  Y10T279/33

Abstract: A power tool includes a spindle and a clamp shaft, and drives a tool accessory clamped by an outer flange and a clamp head. A ball or a grooved clamping element is configured to hold the clamp shaft against the spindle in a fixed manner. A holding element holds and moves the ball or grooved clamping element. A coil spring biases the holding element. The ball or grooved clamping element is movable between a first position where it holds the clamp shaft and a second position where it does not hold the clamp shaft. The holding element is capable of moving the ball or the grooved clamping element from the first position to the second position. The coil spring biases the holding element and prevents movement of the holding element when the ball or the grooved clamping element is located in the second position.

Abstract translation: 电动工具包括主轴和夹紧轴，并驱动由外凸缘和夹头夹住的工具附件。 球或沟槽夹紧元件构造成以固定的方式将夹紧轴保持在主轴上。 保持元件保持并移动球形或槽形夹紧元件。 螺旋弹簧偏压保持元件。 球形或槽形夹紧元件可在其保持夹紧轴的第一位置和不夹持夹紧轴的第二位置之间移动。 保持元件能够将球或带槽的夹紧元件从第一位置移动到第二位置。 螺旋弹簧偏压保持元件，并且当球或带槽的夹紧元件位于第二位置时防止保持元件的移动。