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    Work machine having operation rod
    21.
    发明授权
    Work machine having operation rod 有权
    工作机具有操作杆

    公开(公告)号：US09198347B2

    公开(公告)日：2015-12-01

    申请号：US14102885

    申请日：2013-12-11

    Applicant: MAKITA CORPORATION

    Inventor： Tatsuya Nagahama

    IPC: A01D34/78 ,  A01D34/68 ,  A01D34/90 ,  H02P6/16

    CPC classification number: A01D34/78 ,  A01D34/6806 ,  A01D34/90 ,  H02P6/16

    Abstract: A work machine includes a motor and a sensor disposed in a front unit, a motor controller disposed in a rear unit, a motor power line and a sensor signal line disposed along an operation rod, and a pair of electric connectors. The motor power line includes first and second partial motor power lines disposed along the first and second partial rods respectively. The sensor signal line includes first and second partial sensor signal lines disposed along the first and second partial rods respectively. A first electric connector includes first electric terminals, each of which is coupled with corresponding one of the first partial motor power line or the first partial sensor signal line, and a second electric connector includes second electric terminals, each of which is coupled with corresponding one of the second partial motor power line or the second partial sensor signal line.

    Abstract translation: 工作机械包括电动机和设置在前面单元中的传感器，设置在后部单元中的电动机控制器，电动机电力线以及沿着操作杆设置的传感器信号线和一对电连接器。 马达动力线包括分别沿着第一和第二部分杆布置的第一和第二部分马达动力线。 传感器信号线包括分别沿着第一和第二部分杆布置的第一和第二部分传感器信号线。 第一电连接器包括第一电端子，每个电端子与第一部分电动机电源线或第一部分传感器信号线中的相应一个耦合，并且第二电连接器包括第二电端子，每个电端子与相应的一个 的第二部分电动机电力线或第二部分传感器信号线。

    POWER TOOL, SUCH AS A PORTABLE CIRCULAR SAW, HAVING IMPROVED BRAKING AND COOLING
    22.
    发明申请
    POWER TOOL, SUCH AS A PORTABLE CIRCULAR SAW, HAVING IMPROVED BRAKING AND COOLING 有权
    电动工具，如便携式圆锯，具有改进的制动和冷却

    公开(公告)号：US20140215839A1

    公开(公告)日：2014-08-07

    申请号：US14164128

    申请日：2014-01-24

    Applicant: MAKITA CORPORATION

    Inventor： Kenji ABE ,  Yusuke HIRATA ,  Tatsuya Nagahama

    IPC: B27B5/38 ,  H02K7/14 ,  H02K7/106 ,  B23Q11/12 ,  H02K9/06

    CPC classification number: B27B5/38 ,  B23Q11/126 ,  B25F5/001 ,  B25F5/008 ,  H02K7/106 ,  H02K7/145 ,  H02K9/06 ,  H02K11/0094

    Abstract: A power tool, for example, a portable circular saw, includes a fan, a motor configured to rotate the fan, an output part or shaft driven by the motor, a motor housing that houses the motor, a grip housing connected to the motor housing, a trigger associated with the grip housing, and a brake member configured to brake a rotation of the motor, the brake member being mounted inside the grip housing. The brake member may be a resistive element of a rheostatic braking system. The housing and fan are configured such that cooling air is directed to cool the brake member.

    Abstract translation: 电动工具例如便携式圆锯包括风扇，构造成使风扇旋转的电动机，由电动机驱动的输出部分或轴，容纳电动机的电动机壳体，连接到电动机壳体的把手壳体 与抓握壳体相关联的扳机，以及构造成制动马达的旋转的制动构件，所述制动构件安装在所述手柄壳体的内部。 制动构件可以是变阻制动系统的电阻元件。 壳体和风扇被构造成使得冷却空气被引导以冷却制动构件。

    Battery pack
    23.
    发明授权
    Battery pack 有权

    公开(公告)号：US12155078B2

    公开(公告)日：2024-11-26

    申请号：US17036435

    申请日：2020-09-29

    Applicant: MAKITA CORPORATION

    Inventor： Tatsuya Nagahama

    IPC: H01M10/42 ,  H01M50/10 ,  H01M50/213 ,  H01M50/30 ,  H01M50/543 ,  H01M50/572

    Abstract: A battery pack (2; 602) includes: an outer case (12; 612), which comprises an upper-part case (14) and a lower-part case (15; 615) fixed to the upper-part case (14); at least one battery cell (90a-90j); and a cell case (80), which houses the battery cell(s) (90a-90j). A clearance (C11-C13) is provided between the lower-part case (15; 615) and the entire lower surface of the cell case (80).

    Power tool
    26.
    发明授权
    Power tool 有权

    公开(公告)号：US10903718B2

    公开(公告)日：2021-01-26

    申请号：US15919615

    申请日：2018-03-13

    Applicant: MAKITA CORPORATION

    Inventor： Tatsuya Nagahama ,  Junya Inuzuka ,  Takashi Momose

    IPC: H02K7/14 ,  B25F5/02 ,  H02K5/04 ,  H02K3/52 ,  H02K3/28 ,  H02K5/22 ,  H02K29/08 ,  H02K7/116 ,  H02K11/215 ,  H02K11/27 ,  B25F5/00

    Abstract: A power tool (1; 90) includes a motor (17) having a stator (18) and a rotor (19). The stator (18) includes front and rear insulators (21, 22) respectively disposed forward and rearward of a stator core (20) in an axial direction thereof. At least six coils (23) are respectively wound on the stator (18) such that the coils (23) are wound through the front and rear insulators (21, 22). Winding wires (23a) respectively electrically connect circumferentially-adjacent pairs of the coils (23). A short circuiting device (25) short circuits respective pairs of windings (23a) that are located diagonally or diametrically across from one another.

    POWER TOOL
    30.
    发明申请
    POWER TOOL 有权
    电动工具

    公开(公告)号：US20150069864A1

    公开(公告)日：2015-03-12

    申请号：US14481237

    申请日：2014-09-09

    Applicant: MAKITA CORPORATION

    Inventor： Tatsuya Nagahama ,  Junya lnuzuka ,  Takashi Momose

    IPC: H02K7/14 ,  H02K11/00 ,  H02K3/38 ,  H02K3/28

    CPC classification number: H02K7/145 ,  H02K3/28 ,  H02K3/522 ,  H02K5/225 ,  H02K7/116 ,  H02K11/215 ,  H02K11/27 ,  H02K29/08 ,  H02K2203/03 ,  H02K2203/09

    Abstract: A power tool (1; 90) includes a motor (17) having a stator (18) and a rotor (19). The stator (18) includes front and rear insulators (21, 22) respectively disposed forward and rearward of a stator core (20) in an axial direction thereof. At least six coils (23) are respectively wound on the stator (18) such that the coils (23) are wound through the front and rear insulators (21, 22). Winding wires (23a) respectively electrically connect circumferentially-adjacent pairs of the coils (23). A short circuiting device (25) short circuits respective pairs of windings (23a) that are located diagonally or diametrically across from one another.

    Abstract translation: 电动工具（1; 90）包括具有定子（18）和转子（19）的电动机（17）。 定子（18）包括分别设置在定子铁心（20）的轴向方向前后的前后绝缘体（21,22）。 至少六个线圈（23）分别缠绕在定子（18）上，使得线圈（23）通过前后绝缘体（21,22）缠绕。 绕线（23a）分别电连接周向相邻的线圈对（23）。 短路装置（25）使相对于彼此对角地或直径地对准的各对绕组（23a）短路。

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