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11. 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。

12. 发明申请

WO2014175470A1 ELECTRIC TOOL 审中-公开
标题翻译：电动工具
公开(公告)号：WO2014175470A1
公开(公告)日：2014-10-30
申请号：PCT/JP2014/062212
申请日：2014-04-25
申请人： HITACHI KOKI CO., LTD.
发明人： TAKANO, Nobuhiro , IWATA, Kazutaka
IPC分类号： B25B21/00 , B25B21/02
CPC分类号： H02P1/028 , B25B21/00 , B25B21/02 , B25F5/008 , H02P1/22
摘要： An electric tool includes: a motor configured to be driven by PWM controlling a semiconductor switching element; a trigger configured to adjust startup and rotation of the motor; a changeover switch configured to switch a rotation direction of the motor between a forward rotation and a reverse rotation; a power transmission mechanism configured to rotate a tip tool by the motor, and a controller configured to control rotation of the motor. When the reverse rotation is set by the changeover switch, the controller PWM controls the semiconductor switching element at a high duty ratio after the trigger is pulled to drive the motor, and thereafter drives the motor at a state where the high duty ratio is changed to a low duty ratio.
摘要翻译：一种电动工具，包括：电动机，被配置为由PWM控制半导体开关元件驱动; 触发器，其被配置为调节所述电动机的启动和旋转; 切换开关，被配置为在正向旋转和反向旋转之间切换电动机的旋转方向; 动力传递机构，其构造成通过所述马达旋转末梢工具;以及控制器，被配置为控制所述马达的旋转。当通过转换开关设定反向旋转时，控制器PWM在拉动触发器以驱动电动机之后以高占空比控制半导体开关元件，然后在高占空比变为高的状态下驱动电动机低占空比。

13. 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。

14. 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。

15. 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。

16. 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.

17. 发明申请

WO2015147331A1 ELECTRIC TOOL 审中-公开
标题翻译：电动工具
公开(公告)号：WO2015147331A1
公开(公告)日：2015-10-01
申请号：PCT/JP2015/060303
申请日：2015-03-25
申请人： HITACHI KOKI CO., LTD.
发明人： TAKANO, Nobuhiro , IWATA, Kazutaka , KOIZUMI, Toshiaki , TADOKORO, Naoki , HAGA, Hiroshi , SATOU, Shinichirou
IPC分类号： B25F5/00
CPC分类号： H02P6/16 , B25F5/00 , H02P27/08
摘要： An electric tool including a motor configured to be driven by a PWM control of a semiconductor switching element by using a power supply, a power transmission mechanism configured to transmit a rotation of the motor to an end tool, and a controller configured to control a rotation of the motor by a duty ratio of a PWM signal, wherein the controller is configured to set the duty ratio to a reference duty ratio less than 100% when a voltage of the power supply applied to the electric tool is within a predetermined range including a rated voltage of the electric tool, and wherein the controller is configured to drive the motor by setting the duty ratio to be higher than the reference duty ratio when the voltage of the power supply applied to the electric tool is lower than the predetermined range.
摘要翻译：一种电动工具，包括：电动机，其配置为通过使用电源的半导体开关元件的PWM控制来驱动;动力传递机构，被配置为将所述电动机的旋转传递到端部工具;以及控制器，被配置为控制旋转的PWM信号的占空比，其中，所述控制器被配置为当施加到所述电动工具的电源的电压处于包括所述电动工具的预定范围内时，将所述占空比设置为小于100％的基准占空比电动工具的额定电压，并且其中，所述控制器被配置为当施加到所述电动工具的电源的电压低于所述预定范围时，通过将所述占空比设置为高于所述基准占空比来驱动所述电动机。

18. 发明申请

WO2014068987A1 POWER TOOL WITH STATUS INDICATOR 审中-公开
标题翻译：电动工具与状态指示器
公开(公告)号：WO2014068987A1
公开(公告)日：2014-05-08
申请号：PCT/JP2013/006469
申请日：2013-10-31
申请人： HITACHI KOKI CO., LTD.
发明人： KOIZUMI, Toshiaki , IWATA, Kazutaka , SHIMIZU, Yasutaka
IPC分类号： A01G3/053
CPC分类号： A01G3/053 , B25F5/00
摘要： A power tool includes: a power source (7); a tip tool (2); two switches (SW1,SW2); and a control unit (6e). The tip tool (2) is configured to be driven by the power source (7). The two switches (SW1,SW2) are configured to be turned on for activating the power source (7). The control unit (6e) is configured to control the power source (7) in accordance with on/off of the two switches (SW1,SW2), and operate if at least one of the two switches (SW1,SW2) is turned on.
摘要翻译：电动工具包括：电源（7）; 尖端工具（2）; 两个开关（SW1，SW2）; 和控制单元（6e）。尖端工具（2）被构造成由电源（7）驱动。两个开关（SW1，SW2）被配置为导通以激活电源（7）。控制单元（6e）被配置为根据两个开关（SW1，SW2）的接通/关断来控制电源（7），并且如果两个开关（SW1，SW2）中的至少一个被接通，则操作。

19. 发明申请

WO2014051167A2 ELECTRIC POWER TOOL 审中-公开
标题翻译：电动工具
公开(公告)号：WO2014051167A2
公开(公告)日：2014-04-03
申请号：PCT/JP2013/077017
申请日：2013-09-27
申请人： HITACHI KOKI CO., LTD.
发明人： IWATA, Kazutaka
IPC分类号： H02P7/00
CPC分类号： H02P7/28 , B25F5/00 , H02P7/29 , H02P27/085 , H02P31/00
摘要： An electric power tool comprising a voltage conversion circuit configured to control magnitude of a voltage applied to a motor in accordance with magnitude of load.
摘要翻译：包括电压转换电路的电动工具，所述电压转换电路被配置为根据负载的大小来控制施加到马达的电压的大小。

20. 发明申请

WO2013147324A2 ELECTRIC TOOL AND FASTENING METHOD USING THE SAME 审中-公开
标题翻译：使用该工具的电动工具和紧固方法
公开(公告)号：WO2013147324A2
公开(公告)日：2013-10-03
申请号：PCT/JP2013/060402
申请日：2013-03-29
申请人： HITACHI KOKI CO., LTD.
发明人： SAKAI, Hironori , TADOKORO, Naoki , IWATA, Kazutaka
IPC分类号： B25F5/00
CPC分类号： B25F5/001 , B25B21/02 , B25F5/00
摘要： An electric tool in which a pulsating input voltage is configured to be supplied to a drive circuit of a motor, the electric tool including: a rotation speed detection unit configured to detect a rotation speed of the motor, characterized in that the electric tool further includes: a control part configured to vary a determining value for determining whether the rotation speed of the motor satisfies a predetermined condition or not, so as to be synchronous with a pulsation cycle of the input voltage supplied to the drive circuit.
摘要翻译：一种电动工具，其中脉动输入电压被配置为提供给电动机的驱动电路，所述电动工具包括：转速检测单元，被配置为检测电动机的转速，其特征在于，所述电动工具还包括：控制部，被配置为改变用于确定电机的转速是否满足预定条件的确定值，以便与提供给驱动电路的输入电压的脉动周期同步。

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