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公开(公告)号：US20230264337A1
公开(公告)日：2023-08-24
申请号：US18166569
申请日：2023-02-09
Applicant: Makita Corporation
Inventor： Daisuke SUZUKI , Masayoshi OKUMI
CPC classification number: B25F5/02 , F16K17/366 , B27B17/02
Abstract: An electric working machine may include: an electrical component; a first space in which the electrical component is disposed; a partition wall separating the first space from a second space different from the first space, the partition wall including a first communication opening communicating the first space and the second space; and a first one-way valve disposed at the first communication opening.
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公开(公告)号：US20230286187A1
公开(公告)日：2023-09-14
申请号：US18178949
申请日：2023-03-06
Applicant: Makita Corporation
Inventor： Daisuke SUZUKI
IPC: B27B17/08
CPC classification number: B27B17/08
Abstract: A working machine may include a working part and a body including a motor accommodating part. The body may include a fan, a motor, and one or more first air intake openings. The motor accommodating part may include a wall and a second air intake opening. In a case where the fan is driven, air outside the body may pass through the one or more first intake openings and the second intake opening sequentially in this order, and flows into the motor accommodating part. At least one of the one or more first intake openings may be positioned above the second intake opening in a working state of the working machine. In the axial direction, the one or more first intake openings may be positioned on a second side of the second intake opening, the second side being opposite the first side in the axial direction.
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公开(公告)号：US20230286186A1
公开(公告)日：2023-09-14
申请号：US18178920
申请日：2023-03-06
Applicant: Makita Corporation
Inventor： Daisuke SUZUKI , Masayoshi Okumi , Hideki Kachi
Abstract: A working machine may include a working part, a body including a motor accommodating part, a fan accommodated in the motor accommodating part and a motor accommodated in the motor accommodating part and configured to drive the working part and the fan. The fan may include a disk plate including a circular opening defined at a center of the disk plate, a plurality of vanes attached to the disk plate, and a cover part. The plurality of vanes may be covered by the disk plate and the cover part in an axial direction.
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公开(公告)号：US20230286129A1
公开(公告)日：2023-09-14
申请号：US18176059
申请日：2023-02-28
Applicant: MAKITA CORPORATION
Inventor： Daisuke SUZUKI , Mayayoshi OKUMI
IPC: B25F5/00 , H02K5/20 , H02K9/06 , H02K11/00 , H01M10/6563
CPC classification number: B25F5/008 , H02K5/207 , H02K9/06 , H02K11/0094 , H01M10/6563 , B27B17/02
Abstract: A working machine may include a working part, a fan, a motor configured to drive the working part and the fan, a body housing accommodating the fan and the motor and including a battery accommodating part which defines a battery accommodating space and a battery pack accommodated in the battery accommodating part. The battery accommodating part may include an air intake opening for intaking air from inside of the body housing into the battery accommodating space and an air exhaust opening for exhausting air from the battery accommodating space to the inside of the body housing. An air intake tube protruding from the battery accommodating part to the inside of the body housing may be connected to the air intake opening of the battery accommodating part.
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Patent Agency Ranking
公开(公告)号：US20220071109A1
公开(公告)日：2022-03-10
申请号：US17470138
申请日：2021-09-09
Applicant: Makita Corporation
Inventor： Daisuke SUZUKI , Kouichi TAKEDA
Abstract: An electric working machine may include a control device configured to control an electric unit, an operation member, a first switch configured to be operated by the operation member, and a second switch configured to be operated by the operation member. The operation member may pass a second position and a third position while the operation member moves to the first position. The first switch may be configured to transmit a first signal which changes as the operation member moves from the second position to the first position to the control device when the operation member moves between the second position and the first position. The second switch may be configured to transmit a second signal to the control device when the operation member passes the third position. The control device may be configured to control the electric unit based on the first signal and the second signal.
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公开(公告)号：US20190217496A1
公开(公告)日：2019-07-18
申请号：US16245648
申请日：2019-01-11
Applicant: MAKITA CORPORATION
Inventor： Yoshinori SHIBATA , Daisuke SUZUKI , Takuma NIIYAMA
CPC classification number: B27B17/02 , B23D57/023
Abstract: A chain saw may include a saw chain, a guide bar to which the saw chain is attached, a sprocket configured to move the saw chain along a periphery of the guide bar, a prime mover configured to rotate the sprocket, a housing that houses the prime mover, a bolt protruding from the housing and penetrating a hole provided in the guide bar, and a nut screwed to the bolt to fix the guide bar to the housing. The nut may be exposed to outside. A heat insulating structure may be provided on a heat transfer path between the nut and the guide bar.
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公开(公告)号：US20160107202A1
公开(公告)日：2016-04-21
申请号：US14873388
申请日：2015-10-02
Applicant: MAKITA CORPORATION
Inventor： Daisuke SUZUKI , Yuki KOIDE
IPC: B08B5/02
Abstract: A power-operated air propelling work apparatus includes: an air flow pipe including an air inlet opening, an air outlet opening and a pipe wall formed between the air inlet opening and the air outlet opening to define an air flow passageway inside the pipe wall; an electric air propelling fan disposed within the air flow passageway for sucking in air from the air inlet opening and blowing out air from the air outlet opening; an apparatus housing surrounding and supporting the air flow pipe and forming a housing space between the apparatus housing and the air flow pipe; and a control circuit unit disposed within the housing space for controlling an operation of the electric air propelling fan, wherein the pipe wall is formed with an air passage hole by which the air flow passageway and the housing space communicate with each other.
Abstract translation: 动力式空气推进作业装置包括：空气流动管，包括进气口，出气口和形成在进气口和出气口之间的管壁，以在管壁内限定空气流动通道; 设置在所述空气流动通道内的电动空气推进风扇，用于从所述空气入口开口吸入空气并从所述出气口吹出空气; 围绕并支撑所述空气流动管并在所述装置壳体和所述空气流动管之间形成容纳空间的装置壳体; 以及控制电路单元，其设置在所述容纳空间内，用于控制所述电动空气推进风扇的操作，其中所述管壁形成有空气通路孔，所述空气流动通道和所述容纳空间通过所述通气孔彼此连通。
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公开(公告)号：US20190111582A1
公开(公告)日：2019-04-18
申请号：US16157387
申请日：2018-10-11
Applicant: MAKITA CORPORATION
Inventor： Daisuke SUZUKI , Takuma NIIYAMA
Abstract: A chain saw disclosed herein may include a motor configured to rotate a saw chain about a guide bar, a control unit configured to control a voltage applied to the motor, a body housing that houses the motor and the control unit, a battery detachably attached to the body housing, and a top handle provided above the body housing. The control unit may be disposed above the battery. In a rear view of the chain saw in a state where the chain saw is placed on a mount surface, the battery and the control unit may not overlap. In a top view of the chain saw in the state where the chain saw is placed on the mount surface, the battery and the control unit may overlap at least partially.
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公开(公告)号：US20150375416A1
公开(公告)日：2015-12-31
申请号：US14765141
申请日：2014-01-31
Applicant: MAKITA CORPORATION
Inventor： Koji HANEDA , Jiro ODA , Hideaki SUGIURA , Daisuke SUZUKI
CPC classification number: B27B17/02 , B25F5/02 , B27B17/00 , B27B17/0008
Abstract: A chainsaw includes a body housing, an elongated guide bar projecting forward from the body housing, a saw-chain mounted on the periphery of the guide bar for rotation, an electric motor mounted within the body housing for rotating, and a top handle provided on an upper portion of the body housing above the guide bar and extending in a fore-and-aft direction. A plurality of rechargeable battery packs is mounted on the body housing as a source of power supply for the electric motor. The battery packs are mounted to the body housing in such a manner that a center of gravity of the chainsaw observed from the back side is positioned in a two times extent of lateral width of a gripe portion of the top handle at both sides of a vertical centerline of the gripe portion.
Abstract translation: 电锯包括主体壳体，从主体壳体向前突出的细长导杆，安装在导杆周围的用于旋转的锯链，安装在主体壳体内用于旋转的电动马达和设置在主体壳体上的顶部手柄 主体壳体的上部在引导杆上方并且在前后方向上延伸。 多个可再充电电池组被安装在主体外壳上作为用于电动机的电源。 电池组以这样的方式安装到主体外壳，使得从后侧观察到的电锯的重心定位在顶部手柄的夹持部分的横向宽度的两倍程度的两侧，垂直方向 抓地部分的中心线。
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