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45 条记录 (耗时 0.021 秒)

    POWER TOOL
    1.
    发明授权
    POWER TOOL 有权

    公开(公告)号：EP2467239B1

    公开(公告)日：2014-03-19

    申请号：EP11715764.4

    申请日：2011-03-29

    申请人： Hitachi Koki Co., Ltd.

    发明人： ITO, Yutaka ,  OOMORI, Katsuhiro ,  NAKAMURA, Mizuho ,  NISHIKAWA, Tomomasa ,  MASHIKO, Hironori

    IPC分类号： B25F5/00 ,  H02P6/06

    CPC分类号： B25F5/00 ,  B25F5/021 ,  H02P6/06

    摘要： An electronic pulse driver includes a motor, a hammer, an anvil, an end tool mounting unit, a power supply unit, and a control unit. The hammer is rotatable together with the anvil. The end tool mounting unit transmits the rotation of the anvil to an end tool. The power supply unit supplies a drive electric power to the motor. The control unit controls the power supply unit to halt a supply of the drive electric power to the motor when an electric current flowing to the motor increases to a prescribed value. The control unit controls the power supply unit to supply to the motor a prestart electric power lower than the drive electric power before supplying the drive electric power in order to permit the power supply unit to supply the drive electric power after the hammer is in contact with the anvil.

    POWER TOOL
    2.
    发明公开
    POWER TOOL 有权
    电动工具

    公开(公告)号：EP2467239A1

    公开(公告)日：2012-06-27

    申请号：EP11715764.4

    申请日：2011-03-29

    申请人： Hitachi Koki Co., Ltd.

    发明人： ITO, Yutaka ,  OOMORI, Katsuhiro ,  NAKAMURA, Mizuho ,  NISHIKAWA, Tomomasa ,  MASHIKO, Hironori

    IPC分类号： B25F5/00 ,  H02P6/06

    CPC分类号： B25F5/00 ,  B25F5/021 ,  H02P6/06

    摘要： An electronic pulse driver includes a motor, a hammer, an anvil, an end tool mounting unit, a power supply unit, and a control unit. The hammer is rotatable together with the anvil. The end tool mounting unit transmits the rotation of the anvil to an end tool. The power supply unit supplies a drive electric power to the motor. The control unit controls the power supply unit to halt a supply of the drive electric power to the motor when an electric current flowing to the motor increases to a prescribed value. The control unit controls the power supply unit to supply to the motor a prestart electric power lower than the drive electric power before supplying the drive electric power in order to permit the power supply unit to supply the drive electric power after the hammer is in contact with the anvil.

    摘要翻译： 电子脉冲驱动器包括电动机，锤子，砧座，终端工具安装单元，电源单元和控制单元。 锤可与砧一起旋转。 终端工具安装单元将砧座的旋转传递到终端工具。 电源单元向马达提供驱动电力。 当流到电机的电流增加到规定值时，控制单元控制电源单元停止向电机供应驱动电力。 在提供驱动电力之前，控制单元控制电源单元向马达提供低于驱动电力的预启动电力，以便允许电源单元在音槌接触之后提供驱动电力 铁砧。

    IMPACT TOOL
    3.
    发明公开
    IMPACT TOOL 审中-公开
    IMPACT工具

    公开(公告)号：EP2459348A1

    公开(公告)日：2012-06-06

    申请号：EP10745443.1

    申请日：2010-07-29

    申请人： Hitachi Koki Co., Ltd.

    发明人： NISHIKAWA, Tomomasa ,  TAKANO, Nobuhiro ,  TANIMOTO, Hideyuki ,  IWATA, Kazutaka ,  MASHIKO, Hironori ,  YAMAGUCHI, Hayato ,  NAKAGAWA, Atsushi ,  OOMORI, Katsuhiro ,  NAKAMURA, Mizuho ,  UCHIDA, Hiroki ,  NAKANO, Saroma ,  YOSHIMIZU, Chikai

    IPC分类号： B25B21/02 ,  B25B23/147

    CPC分类号： B25B23/1475 ,  B25B21/02

    摘要： According to an aspect of the present invention, there is provided an impact tool including: a motor; a hammer connected to an output portion of the motor; and an anvil to be struck by the hammer in a rotation direction and having a rotary shaft, the hammer striking the anvil in the rotation direction by driving the motor in pulses, wherein the anvil is provided in front of the hammer, wherein the hammer is driven in pulses by the motor, and wherein a rotation angle of the hammer is substantially proportional to a rotation angle of the motor.

    摘要翻译： 根据本发明的一个方面，提供了一种冲击工具（1），包括：电动机（3）;以及电动机 锤（41），其连接到马达（3）的输出部分; （41）在旋转方向上冲击并且具有旋转轴的砧座，所述冲击锤（41）通过脉冲驱动所述马达（3）而在所述旋转方向上冲击所述砧座（46），其中所述砧座 其特征在于，所述锤（41）的前方设置有锤（46​​），所述锤（41）由所述马达（3）脉冲驱动，所述锤（41）的旋转角度与 电机（3）。

    ELECTRIC WORK MACHINE
    6.
    发明公开
    ELECTRIC WORK MACHINE 审中-公开
    电动工作机

    公开(公告)号：EP3213878A1

    公开(公告)日：2017-09-06

    申请号：EP15854804.0

    申请日：2015-09-29

    申请人： Hitachi Koki Co., Ltd.

    发明人： MATSUSHITA, Akira ,  NISHIKAWA, Tomomasa ,  NOGUCHI, Yuta ,  KANBE, Kuniaki ,  YAMAZAKI, Shingo

    IPC分类号： B25F5/00

    CPC分类号： B25F5/008 ,  H02K9/06 ,  H02K11/33 ,  H02P6/16

    摘要： Provided is an electric work machine that can suppress a temperature increase of a component controlling an electric motor. The electric work machine including a brushless motor that operates a tip tool includes a rectification circuit 53 that converts a voltage to be applied to the brushless motor from an alternating current voltage to a direct current voltage, and a switching circuit 121 that controls the brushless motor, and the rectification circuit 53 is arranged upstream of the switching circuit 121 in a circulation path D1 of the air that cools the rectification circuit 53 and the switching circuit 121.

    摘要翻译： 本发明提供一种能够抑制控制电动机的部件的温度上升的电动作业机械。 包括操作尖端工具的无刷电动机的电动作业机包括：整流电路53，其将施加到无刷电动机的电压从交流电压转换为直流电压;以及开关电路121，其控制无刷电动机 整流电路53配置在冷却整流电路53和开关电路121的空气的循环路径D1中的开关电路121的上游侧。

    ELECTRIC WORKING MACHINE
    7.
    发明公开
    ELECTRIC WORKING MACHINE 审中-公开
    电动工作机

    公开(公告)号：EP3187309A1

    公开(公告)日：2017-07-05

    申请号：EP15835365.6

    申请日：2015-08-21

    申请人： Hitachi Koki Co., Ltd.

    发明人： HASHIMOTO, Hideyuki ,  ABE, Satoshi ,  YAMAZAKI, Shingo ,  NISHIKAWA, Tomomasa ,  MATSUSHITA, Akira

    IPC分类号： B25F5/00 ,  B25D11/04 ,  B25F5/02 ,  H02K11/00

    CPC分类号： B25D11/04 ,  B25D11/12 ,  B25D2211/068 ,  B25D2250/095 ,  B25D2250/221 ,  B25F5/00 ,  B25F5/008 ,  B25F5/02 ,  H02K5/225 ,  H02K9/06 ,  H02K11/00 ,  H02K11/21 ,  H02K11/33 ,  H02P6/17 ,  H02P27/08

    摘要： The present invention provides an electric working machine in which a control board can be disposed without limitations based on a length of a brushless motor in a direction along an axial line. The electric working machine comprises: a brushless motor (30) provided with a rotor (32) and a stator (31); a motor case (27) and a motor housing (20) in which the brushless motor (30) is stored; a control board (71) which is provided outside of the motor housing (20) in a radial direction of an axial line (B1) defined at the center of the rotor (32), and supports the switching elements; a connection board (47) which is provided in the motor case (27), and supports the sensors (S1 to S3); a through hole (90) provided on the motor case (27) ; a through hole (89) provided on the motor housing (20); and leads (58, 60, 62, 64, 65 and 67) and signal lines (75) extending from inside of the motor housing (20) to the outside of the motor housing (20) through the holes (89 and 90).

    摘要翻译： 本发明提供一种电动工作机械，其中控制板可以基于沿着轴线方向的无刷电动机的长度无限制地设置。 该电动工作机包括：设置有转子（32）和定子（31）的无刷电机（30）; 电动机壳体（27）和收纳无刷电动机（30）的电动机壳体（20） 控制基板（71），其设置在所述电动机壳体（20）的外侧，在所述转子（32）的中心的轴线（B1）的径向上，并支撑所述开关元件; 设置在马达壳体（27）中并支撑传感器（S1〜S3）的连接板（47）; 设置在马达壳体（27）上的通孔（90）; 设置在马达壳体（20）上的通孔（89）; 和从马达壳体（20）内部通过孔（89和90）延伸到马达壳体（20）外部的导线（58,60,62,64,65和67）和信号线（75）。

    IMPACT TOOL
    8.
    发明公开
    IMPACT TOOL 审中-公开
    IMPACT工具

    公开(公告)号：EP3175954A1

    公开(公告)日：2017-06-07

    申请号：EP15827439.9

    申请日：2015-07-24

    申请人： Hitachi Koki Co., Ltd.

    发明人： NISHIKAWA, Tomomasa ,  HARADA, Tetsuhiro ,  MATSUNO, Satoru

    IPC分类号： B25B21/02

    CPC分类号： B25B21/026 ,  B25B21/02

    摘要： In order to suppress a galling phenomenon between an impact member and a rotating member even when a gouging force acts on an impact tool, an inclined portion 50 is provided between a wall portion 30c1 which is provided between a pair of hammer cams 30a1 and 30a2 in a circumferential direction of a through-hole 30c and a bottom portion 30c2 which is provided in each center portion of the hammer cams 30a1 and 30a2 in the circumferential direction of the through-hole 30c, the inclined portion which has a smaller size than a size of the wall portion 30c1 in the shaft direction of the through-hole 30c and a larger size than a size of the bottom portion 30c2 in the shaft direction of the through-hole 30c and against which the spindle 26 is pushed when the first pawl and the second pawl 30e1 (30e2) are engaged with each other.

    摘要翻译： 为了抑制冲击构件和旋转构件之间的磨损现象，即使当凿削力作用在冲击工具上时，倾斜部分50也设置在设置在一对锤击凸轮30a1和30a2之间的壁部30c1之间 通孔30c的圆周方向和在通孔30c的圆周方向上设置在锤击凸轮30a1和30a2的每个中心部分中的底部30c2，所述倾斜部分具有比尺寸 通孔30c的轴向上的壁部30c1的尺寸大于通孔30c的轴向上的底部30c2的尺寸，并且当第一棘爪和第二棘爪 第二爪30e1（30e2）彼此接合。