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1. 发明申请

WO2012127851A2 ELECTRIC POWER TOOL 审中-公开
标题翻译：电动工具
公开(公告)号：WO2012127851A2
公开(公告)日：2012-09-27
申请号：PCT/JP2012/001898
申请日：2012-03-19
申请人： HITACHI KOKI CO., LTD. , IWATA, Kazutaka , KOIZUMI, Toshiaki
发明人： IWATA, Kazutaka , KOIZUMI, Toshiaki
CPC分类号： H02P27/06 , H02K19/10 , H02P6/10 , H02P6/15 , H02P6/157 , H02P6/28 , H02P27/04
摘要： An electric power tool includes: a brushless motor having a plurality of stator windings and configured to rotate in accordance with voltages applied to the plurality of stator windings, an induced voltage being generated in accordance with a rotation of the brushless motor; a rectifier circuit configured to rectify an AC voltage; a smoothing capacitor configured to smooth the AC voltage rectified by the rectifier circuit to a pulsation voltage having a maximum value larger than the induced voltage and a minimum value smaller than the induced voltage; and an inverter circuit configured to perform switching operations to output the pulsation voltage to the plurality of stator windings by rotation.
摘要翻译：一种电动工具包括：无刷电动机，其具有多个定子绕组并且被配置为根据施加到多个定子绕组的电压而旋转，感应电压根据电动机的旋转产生无刷电机; 整流器电路，被配置为整流AC电压; 平滑电容器，被配置为将由整流电路整流的交流电压平滑为具有比感应电压大的最大值和小于感应电压的最小值的脉动电压; 以及逆变器电路，被配置为执行开关操作以通过旋转向多个定子绕组输出脉动电压。

2. 发明申请

WO2012043286A1 POWER TOOL 审中-公开
标题翻译：电动工具
公开(公告)号：WO2012043286A1
公开(公告)日：2012-04-05
申请号：PCT/JP2011/071291
申请日：2011-09-13
申请人： HITACHI KOKI CO., LTD. , ABE, Satoshi , OKUBO, Takahiro , IWATA, Kazutaka
发明人： ABE, Satoshi , OKUBO, Takahiro , IWATA, Kazutaka
IPC分类号： B25H1/00 , B23B49/00 , B25F5/00
CPC分类号： B23B49/00 , B23B49/006 , B23B2260/092 , B23B2260/128 , B23Q17/22 , B25F5/00 , B25H1/0092 , Y10T408/13 , Y10T408/21
摘要： A power tool includes: a motor driving an end bit; a housing accommodating the motor; a distance measuring sensor provided at the housing; and a controlling section connected to the distance measuring sensor. The controlling section is configured to exclude an abnormal value from measurement value measured by the distance measuring sensor.
摘要翻译：一种电动工具包括：一个驱动端头的电机; 容纳所述马达的壳体; 设置在所述壳体处的距离测量传感器; 以及与距离测量传感器连接的控制部。控制部被配置为从由距离测量传感器测量的测量值排除异常值。

3. 发明申请

WO2011129455A1 DRILLING DEVICE 审中-公开
标题翻译：钻井设备
公开(公告)号：WO2011129455A1
公开(公告)日：2011-10-20
申请号：PCT/JP2011/059470
申请日：2011-04-12
申请人： HITACHI KOKI CO., LTD. , OKUBO, Takahiro , ABE, Satoshi , IWATA, Kazutaka
发明人： OKUBO, Takahiro , ABE, Satoshi , IWATA, Kazutaka
IPC分类号： B25D16/00 , B25F5/00 , B23B49/00
CPC分类号： B25F5/008 , B23B49/00 , B25D16/006 , B25D2211/061 , B25D2216/0023 , B25D2216/0038 , Y10T408/21
摘要： A drilling device (1) drilling to a desired depth without a gauge. The drilling device includes a distance sensor (14) positioned on an imaginary line (I) spanning between a front end (60A) of the housing and a hand gripped portion (10C). The distance sensor is away form a front end of a gear housing (60) by a distance Ls. The distance sensor provides an effective measurement range. The relationship of L1 & le; Ls and Ls+Lb & le; L2 is satisfied where L1 represents a distance between the distance sensor and a point closest to the distance sensor and defining a lower limit of the effective measurement range, L2 represents a distance between the distance sensor and a point farthest from the distance sensor and defining an upper limit of the effective measurement range, and Lb represents a distance between the front end of the housing and a tip end of the end bit.
摘要翻译：钻孔装置（1）在没有量规的情况下钻孔到所需的深度。钻孔装置包括位于跨过壳体的前端（60A）和手抓住部分（10C）之间的假想线（I）上的距离传感器（14）。距离传感器离开形成齿轮壳体（60）的前端距离Ls。距离传感器提供有效的测量范围。 L1＆le的关系 Ls和Ls + Lb＆le; L2是满足的，其中L1表示距离传感器和最接近距离传感器的点之间的距离，并且限定有效测量范围的下限，L2表示距距离传感器与离距离传感器最远的点之间的距离，有效测量范围的上限，Lb表示壳体的前端与端部钻头的末端之间的距离。

4. 发明申请

WO2011013853A3 IMPACT TOOL 审中-公开
公开(公告)号：WO2011013853A3
公开(公告)日：2011-02-03
申请号：PCT/JP2010/063235
申请日：2010-07-29
申请人： Hitachi Koki Co., LTD. , TANIMOTO, Hideyuki , TAKANO, Nobuhiro , NISHIKAWA, Tomomasa , IWATA, Kazutaka , MASHIKO, Hironori , YAMAGUCHI, Hayato , NAKAGAWA, Atsushi , OOMORI, Katsuhiro , NAKAMURA, Mizuho , UCHIDA, Hiroki , NAKANO, Saroma , ITO, Yutaka
发明人： TANIMOTO, Hideyuki , TAKANO, Nobuhiro , NISHIKAWA, Tomomasa , IWATA, Kazutaka , MASHIKO, Hironori , YAMAGUCHI, Hayato , NAKAGAWA, Atsushi , OOMORI, Katsuhiro , NAKAMURA, Mizuho , UCHIDA, Hiroki , NAKANO, Saroma , ITO, Yutaka
IPC分类号： B25B21/02 , B25B23/147
摘要： According to an aspect of the present invention, there is provided an impact tool (1) (including: a motor (3)drivable in an intermittent driving mode; a hammer (41) connected to the motor; an anvil (16) to be struck by the hammer (41) to thereby rotate/strike a tip tool; and a control unit that controls a rotation of the motor (3)by switching a driving pulse supplied to the motor (3) in accordance with a load applied onto the tip tool.

5. 发明申请

WO2012043288A1 POWER TOOL 审中-公开
标题翻译：电动工具
公开(公告)号：WO2012043288A1
公开(公告)日：2012-04-05
申请号：PCT/JP2011/071295
申请日：2011-09-13
申请人： HITACHI KOKI CO., LTD. , OKUBO, Takahiro , IWATA, Kazutaka
发明人： OKUBO, Takahiro , IWATA, Kazutaka
IPC分类号： B25D11/00 , B25F5/00
CPC分类号： B25F5/00 , B25D11/005 , B25D2211/006 , B25D2211/061 , B25D2250/095 , B25D2250/131 , B25D2250/221
摘要： A power tool (1) including: a housing configured to support an end bit (2), a motor accommodated in the housing (21), a transmission mechanism, a trigger switch (13), a load judging unit, and a motor stop control unit. The transmission mechanism transmits a rotational force of the motor to the end bit. The trigger switch (13) is configured to switch between instructions to the motor. The instructions include a rotation instruction for providing a rotation state of the motor and a stopping instruction for providing a stopping state of the motor. The load judging unit judges whether or not a load is applied to the end bit during rotation of the motor. The motor stop control unit stops the rotation of the motor irrespective of the instructions of the trigger switch when the load judging unit judges that no load is applied to the end bit (2) and a period of a non-load state exceeds a predetermined time period.
摘要翻译：一种动力工具（1），包括：壳体，其构造成支撑端部钻头（2），容纳在所述壳体（21）中的马达，传动机构，触发开关（13），负载判断单元和马达停止控制单元传动机构将电动机的旋转力传递到终点。触发开关（13）被配置为在电动机的指令之间切换。指令包括用于提供电动机的旋转状态的旋转指令和用于提供电动机的停止状态的停止指令。负载判断单元判断在电动机旋转期间是否向端部位施加负载。当负载判断单元判定没有负载施加到结束位（2）并且非负载状态的周期超过预定时间时，马达停止控制单元停止电动机的旋转，而不管触发开关的指令如何期。

6. 发明申请

WO2011122362A1 POWER TOOL 审中-公开
标题翻译：电动工具
公开(公告)号：WO2011122362A1
公开(公告)日：2011-10-06
申请号：PCT/JP2011/056485
申请日：2011-03-11
申请人： HITACHI KOKI CO., LTD. , MASHIKO, Hironori , TAKANO, Nobuhiro , IWATA, Kazutaka , NISHIKAWA, Tomomasa , OOMORI, Katsuhiro , NAKAMURA, Mizuho , ITO, Yutaka
发明人： MASHIKO, Hironori , TAKANO, Nobuhiro , IWATA, Kazutaka , NISHIKAWA, Tomomasa , OOMORI, Katsuhiro , NAKAMURA, Mizuho , ITO, Yutaka
IPC分类号： B25B21/02 , B25B23/14 , B25B23/147
CPC分类号： B25B21/02 , B25B21/026 , B25B23/1405 , B25B23/1475
摘要： An electronic pulse driver (1) includes a motor (3), a hammer (4), an anvil (5), an end tool mounting unit (51), a power supply unit (24), a temperature detecting unit, and a controller (72). The hammer (4) is drivingly rotatable in forward and reverse directions by the motor (3). The anvil (5) is provided separately from the hammer and rotated upon striking of the hammer. The power supply unit (24) alternately supplies a forward electric power and a reverse electric power to the motor in a first cycle. The temperature detecting unit is configured to detect a temperature of the motor. The controller (72) is configured to control the power supply unit to alternately supplies the forward electric power and the reverse electric power in a second cycle longer than the first cycle when the temperature of the motor detected by the temperature detecting unit increases to a prescribed value.
摘要翻译：电子脉冲驱动器（1）包括电动机（3），锤子（4），砧座（5），端部工具安装单元（51），电源单元（24），温度检测单元控制器（72）。锤（4）可通过马达（3）沿前后方向驱动旋转。砧座（5）与锤子分开设置，并且在击锤时旋转。电源单元（24）在第一周期中交替地向电动机提供正向电力和反向电力。温度检测单元被配置为检测电动机的温度。控制器（72）被配置为当由温度检测单元检测到的电动机的温度增加到规定的时间时，控制电源单元在比第一周期长的第二周期中交替地提供正向电力和反向电力值。

7. 发明申请

WO2010035547A1 POWER TOOL 审中-公开
标题翻译：电动工具
公开(公告)号：WO2010035547A1
公开(公告)日：2010-04-01
申请号：PCT/JP2009/059643
申请日：2009-05-20
申请人： Hitachi Koki Co., LTD. , OOMORI, Katsuhiro , TOUKAIRIN, Junichi , TAKANO, Nobuhiro , IWATA, Kazutaka , NISHIKAWA, Tomomasa
发明人： OOMORI, Katsuhiro , TOUKAIRIN, Junichi , TAKANO, Nobuhiro , IWATA, Kazutaka , NISHIKAWA, Tomomasa
IPC分类号： H02K29/00 , B25F5/00 , H01L23/13 , H02K11/00
CPC分类号： H02K9/06 , B25F5/00 , H01L2924/0002 , H02K7/145 , H02K11/215 , H02K11/33 , H05K1/181 , H05K3/341 , H05K2201/09027 , H05K2201/10166 , Y02P70/611 , H01L2924/00
摘要： According to an aspect of the present invention, there is provided a power tool including: a brushless motor; switching elements that drive the brushless motor; a circuit board on which the switching elements are mounted; a transmission portion that transmits a driving force of the brushless motor; and a housing that houses the brushless motor, the switching elements, the circuit board and the transmission portion therein, wherein the switching elements include semiconductor elements each having terminals on a bottom surface thereof, and wherein the switching elements are surface mounted on the circuit board.
摘要翻译：根据本发明的一个方面，提供了一种电动工具，包括：无刷电动机; 驱动无刷电机的开关元件; 其上安装有开关元件的电路板; 传递无刷电动机的驱动力的变速部; 以及容纳无刷电动机，开关元件，电路板和其中的传输部分的壳体，其中开关元件包括在其底表面上具有端子的半导体元件，并且其中开关元件表面安装在电路板上。

8. 发明申请

WO2009102082A3 ELECTRIC ROTATING TOOL 审中-公开
公开(公告)号：WO2009102082A3
公开(公告)日：2009-08-20
申请号：PCT/JP2009/053102
申请日：2009-02-16
申请人： HITACHI KOKI CO., LTD. , IWATA, Kazutaka , YOSHIDA, Kenichirou , WATANABE, Shinji
发明人： IWATA, Kazutaka , YOSHIDA, Kenichirou , WATANABE, Shinji
IPC分类号： B25B21/00 , B25F5/00 , H02P29/02 , H02H7/08
摘要： A current detection circuit (18) detects that a drive current of the stator coil (2d) is exceeding a threshold value Ir. A rotation number detection circuit (17) detects that the number of rotations of a rotor (2a) is lower than a threshold value Nr. A computing part (20) outputs a PWM signal which switches a semiconductor switching element (3a) of the inverter circuit part (3). The computing part (20) changes the threshold values Ir and Nr in accordance with the PWM duty of the PWM signal determined in accordance with a pressed distance of a switch trigger (7) and detects a locked state of the motor (2) on the conditions that the motor current I is exceeding the set threshold value Ir and that the number of rotations N thereof is lower than the threshold value Nr.

9. 发明申请

WO2009038230A1 IMPACT TOOL 审中-公开
标题翻译： IMPACT工具
公开(公告)号：WO2009038230A1
公开(公告)日：2009-03-26
申请号：PCT/JP2008/067578
申请日：2008-09-19
申请人： HITACHI KOKI CO., LTD. , IWATA, Kazutaka , WATANABE, Shinji , TAKANO, Nobuhiro
发明人： IWATA, Kazutaka , WATANABE, Shinji , TAKANO, Nobuhiro
IPC分类号： B25B21/02 , B25B23/147
CPC分类号： B25B21/02 , B25B23/1475
摘要： An impact tool (100) includes a spindle (11), a motor (1), a rotational impact system (10), a current detecting unit (32), and a current control unit (31). The spindle extends in an axial direction thereof. The motor provides the spindle with a rotational power in accordance with a motor current flowing therethrough. The rotational power rotates the spindle about the axis at an rpm value. The rotational impact system provides the spindle with an impact force in the axial direction, thereby transmitting both the rotational power and the impact force to an end bit. The current detecting unit detects a current value of the motor current. The current control unit reduces the current value if the current value detected by the current detecting unit exceeds a predetermined value.
摘要翻译：冲击工具（100）包括主轴（11），马达（1），旋转冲击系统（10），电流检测单元（32）和电流控制单元（31）。主轴在其轴向方向上延伸。电动机根据流过其中的电动机电流向主轴提供旋转动力。旋转动力使转轴围绕轴线以rpm值旋转。旋转冲击系统为主轴在轴向方向上提供冲击力，从而将旋转动力和冲击力传递到终点。电流检测单元检测电动机电流的当前值。如果由电流检测单元检测到的电流值超过预定值，则电流控制单元减小电流值。

10. 发明申请

WO2013065217A1 ELECTRIC POWER TOOL 审中-公开
标题翻译：电动工具
公开(公告)号：WO2013065217A1
公开(公告)日：2013-05-10
申请号：PCT/JP2012/005142
申请日：2012-08-13
申请人： Hitachi Koki Co., Ltd. , ABE, Satoshi , OOKUBO, Takahiro , IWATA, Kazutaka
发明人： ABE, Satoshi , OOKUBO, Takahiro , IWATA, Kazutaka
IPC分类号： B25D17/00 , G01D11/10
CPC分类号： B25D17/00 , B25D2250/221 , B25F5/006 , G01D11/10
摘要： A drilling tool 1 includes: an attaching portion 15 to which a tip tool is attached; and a housing for holding the attaching portion 15. An inclination sensor 16A for detecting inclination of the drilling tool 1 and an electronic substrate 16B supporting the inclination sensor 16A, which converts a result of the detection of the inclination sensor 16A into an electric signal, are provided inside the housing. A weight 16D is provided in the electronic substrate 16B. Oscillation generated in operation of the drilling tool 1 and transmitted to the inclination sensor 16A is reduced by the weight.
摘要翻译：钻具1包括：附接部15，其附接有尖端工具; 以及用于保持安装部15的壳体。用于检测钻具1的倾斜度的倾斜传感器16A和支撑倾斜传感器16A的电子基板16B，其将倾斜传感器16A的检测结果转换为电信号，被设置在壳体内。重物16D设置在电子基板16B中。在钻具1的操作中产生并传递到倾斜传感器16A的振动由重量减小。

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