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11. 发明申请

WO2012043287A1 DRILLING DEVICE 审中-公开
标题翻译：钻井设备
公开(公告)号：WO2012043287A1
公开(公告)日：2012-04-05
申请号：PCT/JP2011/071292
申请日：2011-09-13
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： B23B49/00
CPC分类号： B23B49/006 , B23B2260/0487 , B23B2260/128 , B25D2250/055 , B25H1/0092
摘要： A drilling device (1) includes a mounting section (15) to which a drill bit (2) is mounted; a housing (60) holding the mounting section; a distance measuring sensor (14); and a calculating section that is connected to the distance measuring sensor and that derives distance to an object (W) with the distance measuring sensor. The calculating section includes an effective drilling depth deriving section.
摘要翻译：钻井装置（1）包括安装钻头（2）的安装部分（15）; 保持所述安装部的壳体（60）距离测量传感器（14）; 以及计算部，其与所述距离测量传感器连接并且利用所述距离测量传感器导出与物体（W）的距离。计算部分包括有效钻孔深度导出部分。

12. 发明申请

WO2011004902A1 POWER TOOL 审中-公开
标题翻译：电动工具
公开(公告)号：WO2011004902A1
公开(公告)日：2011-01-13
申请号：PCT/JP2010/061738
申请日：2010-07-06
申请人： Hitachi Koki Co., LTD. , IWATA, Kazutaka , TAKANO, Nobuhiro , TANIMOTO, Hideyuki , SHIMA, Yukihiro
发明人： IWATA, Kazutaka , TAKANO, Nobuhiro , TANIMOTO, Hideyuki , SHIMA, Yukihiro
IPC分类号： H02P6/06 , B25F5/00
CPC分类号： B25F5/00 , H02P6/06
摘要： According to an aspect of the present invention, there is provided a power tool including: a motor; a driving circuit that supplies an electric power from a power supply to the motor; a control part that sets a target rotation number for the motor in accordance with a mode selected from a plurality of modes, each mode having a corresponding target rotation number; and a voltage detecting circuit that detects a voltage of the power supply, wherein the target rotation number is varied based on the detected voltage.
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：电动机; 从电源向电动机供给电力的驱动电路; 控制部，其根据从多个模式中选择的模式来设定所述电动机的目标转数，每个模式具有对应的目标转数; 以及电压检测电路，其检测所述电源的电压，其中所述目标转数基于所检测的电压而变化。

13. 发明申请

WO2009107563A3 ELECTRIC ROTATING TOOL, CONTROL METHOD, AND PROGRAM 审中-公开
公开(公告)号：WO2009107563A3
公开(公告)日：2009-09-03
申请号：PCT/JP2009/053100
申请日：2009-02-16
申请人： HITACHI KOKI CO., LTD. , IWATA, Kazutaka
发明人： IWATA, Kazutaka
IPC分类号： B25B23/147 , B25F5/00 , H02P29/02 , H02H7/08
摘要： Tightening torque is appropriately managed by a simple means. An electric rotating tool (40) has a brushless DC motor (2), an inverter circuit part (3), and a control circuit part (4). The control circuit part (4) has a current detecting circuit (18), which detects a motor current I, a rotation number detecting circuit (17), which detects the number of rotations of the motor (N), and a computing part (19), which calculates first tightening torque (T1) based on the detection information of the motor current (I) and calculates second tightening torque (T2) based on the number of rotations of the motor (N). The computing part (19) estimates tightening torque Tave based on the estimate value of the first tightening torque (T1) or the second tightening torque (T2). The computing part (19) stops driving the motor (2) when the estimated tightening torque Tave exceeds a set value Tset.

14. 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。

15. 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。

16. 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。

17. 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.

18. 发明申请

WO2009102082A2 ELECTRIC ROTATING TOOL, CONTROL METHOD, AND PROGRAM 审中-公开
标题翻译：电动工具，控制方法和程序
公开(公告)号：WO2009102082A2
公开(公告)日：2009-08-20
申请号：PCT/JP2009053102
申请日：2009-02-16
申请人： HITACHI KOKI KK , IWATA KAZUTAKA , YOSHIDA KENICHIROU , WATANABE SHINJI
发明人： IWATA KAZUTAKA , YOSHIDA KENICHIROU , WATANABE SHINJI
IPC分类号： B25B21/00 , B25F5/00
CPC分类号： B25F5/00 , H02H7/0854 , H02P29/0241
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.
摘要翻译：电流检测电路（18）检测出定子线圈（2d）的驱动电流超过阈值Ir。旋转数检测电路（17）检测转子（2a）的转数低于阈值Nr。计算部件（20）输出切换逆变器电路部（3）的半导体开关元件（3a）的PWM信号。计算部件（20）根据根据开关触发器（7）的按压距离确定的PWM信号的PWM占空比来改变阈值Ir和Nr，并检测电动机（2）的锁定状态电动机电流I超过设定阈值Ir并且其转数N低于阈值Nr的条件。

19. 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。

20. 发明申请

WO2011122361A1 POWER TOOL 审中-公开
标题翻译：电动工具
公开(公告)号：WO2011122361A1
公开(公告)日：2011-10-06
申请号：PCT/JP2011/056484
申请日：2011-03-11
申请人： HITACHI KOKI CO., LTD. , NISHIKAWA, Tomomasa , TAKANO, Nobuhiro , IWATA, Kazutaka , MASHIKO, Hironori , OOMORI, Katsuhiro , NAKAMURA, Mizuho , ITO, Yutaka
发明人： NISHIKAWA, Tomomasa , TAKANO, Nobuhiro , IWATA, Kazutaka , MASHIKO, Hironori , OOMORI, Katsuhiro , NAKAMURA, Mizuho , ITO, Yutaka
IPC分类号： B25B21/02 , B25B23/147
CPC分类号： B25B23/1475 , B25B21/02
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), and a control unit (72). The hammer (4) is rotationally driven in forward and reverse directions by the motor (3). The anvil (5) is rotated upon striking the hammer (4) against the anvil as a result of a rotation of the hammer in the forward direction after rotation of the hammer in the reverse direction for obtaining a distance for acceleration in the forward direction. The power supply unit (24) alternately supplies to the motor (3) a forward electric power and a reverse electric power in a first cycle. The control unit (72) controls the power supply unit (24) to alternately supplies the forward electric power and the reverse electric power in a second cycle shorter than the first cycle when an electric current flowing to the motor (3) 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）和控制单元（72）。锤（4）由马达（3）沿正反方向旋转驱动。砧座（5）由于锤子沿相反方向旋转之后沿着向前方向的转动而将锤子（4）撞击砧座旋转，以获得在向前方向上的加速的距离。电源单元（24）在第一周期中交替地向电动机（3）供给正向电力和反向电力。控制单元（72）控制供电单元（24），当流过马达（3）的电流增加到规定的时间时，在比第一周期短的第二周期中交替地供给正向电力和反向电力值。

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