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41. 发明公开

EP2558249A1 DRILLING DEVICE 审中-公开
标题翻译：钻孔
公开(公告)号：EP2558249A1
公开(公告)日：2013-02-20
申请号：EP11716666.0
申请日：2011-04-12
申请人： Hitachi Koki Co., Ltd.
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.

42. 发明公开

EP2391483A1 ELECTRIC BORING TOOL 有权
标题翻译：电钻
公开(公告)号：EP2391483A1
公开(公告)日：2011-12-07
申请号：EP10710459.8
申请日：2010-02-01
申请人： Hitachi Koki CO., LTD.
发明人： OOKUBO, Takahiro , IWATA, Kazutaka
IPC分类号： B25D16/00 , B23B45/02 , B25F5/00 , H02P27/06
CPC分类号： B23B45/02 , B25D16/006 , B25D2211/061 , B25D2222/72 , B25D2250/055 , B25D2250/095 , B25D2250/201 , B25D2250/221 , B25D2250/255 , H02P6/06 , H02P23/03 , H02P27/08 , Y02P70/173
摘要： An electric boring tool(1) comprises an electric motor (40), a switch trigger(61), a tip tool (20) driven by driving force of the electric motor(40), a power transmission mechanism (14) for transmitting the driving force of the electric motor (40) to the tip tool (20) as rotational force and/or hammer force, and a motor control unit (50, 55) for controlling speed of the electric motor (40) in response to an extent of pulling of the switch trigger (61). The motor control unit (50, 55) subjects the electric motor (40) to low speed control (109, 126) after the electric motor (40) is started up, and controls the speed of the electric motor (40) in response to the extent of pulling of the switch trigger (61)when the load current (107) of the electric motor is set value or greater during the low speed control (109).

43. 发明授权

EP2190628B1 IMPACT TOOL 有权转让
公开(公告)号：EP2190628B1
公开(公告)日：2016-03-23
申请号：EP08832319.1
申请日：2008-09-19
申请人： Hitachi Koki CO., LTD.
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

44. 发明公开

EP2926952A1 IMPACT TOOL 审中-实审
标题翻译： IMPACT工具
公开(公告)号：EP2926952A1
公开(公告)日：2015-10-07
申请号：EP13858471.9
申请日：2013-11-25
申请人： Hitachi Koki Co., Ltd.
发明人： TAKANO, Nobuhiro , NISHIKAWA, Tomomasa , IWATA, Kazutaka , HOSHI, Yoshihiro
IPC分类号： B25B21/02 , B25F5/00
CPC分类号： H02P6/085 , B25B21/02 , B25F5/00 , H02P6/30 , H02P2207/05
摘要： The purpose of the present invention is to provide an impact tool capable of performing high torque fastening operation by driving a motor efficiently while limiting temperature increase. An impact tool with a control means for controlling the driving power supplied to a motor using semiconductor switching elements and an impact mechanism for continuously or intermittently driving a tip tool using the rotational force of the motor, wherein during a single operation (period t0 - t9) from when an operator pulls a trigger until release of same, the control means varies the PWM drive signal for driving the semiconductor switching elements to perform control so as to intermittently manifest high duty impacts (62a, 63a ...) resulting from high duty ratio (100%) control between low duty impacts (62b, 62c, 63b, 63c ...) resulting from low duty ratio (80%) control. The control means monitors the motor electric current (80) and when a threshold (11) is exceeded, makes the duty ratio 100% and when a threshold (I2) is subsequently exceeded two times, switches the duty ratio to (80%).
摘要翻译：本发明的目的是提供一种冲击工具，其能够在限制温度升高的同时有效地驱动电动机来执行高扭矩紧固操作。一种具有控制装置的冲击工具，该控制装置用于利用半导体开关元件控制提供给电动机的驱动功率，该冲击工具用于利用电动机的旋转力连续地或间歇地驱动尖端工具，其中在单个操作期间（时间段t0-t9 ）从操作者拉动触发器直到释放触发器为止，控制装置改变用于驱动半导体开关元件的PWM驱动信号以执行控制，以间歇地显示由高负载引起的高负载冲击（62a，63a ...）由低占空比（80％）控制引起的低负载冲击（62b，62c，63b，63c ...）之间的比率（100％）控制。控制装置监视马达电流（80），并且当超过阈值（11）时，使占空比为100％，并且当阈值（I2）随后超过两次时，将占空比切换为（80％）。

45. 发明公开

EP2686951A2 ELECTRIC POWER TOOL 有权转让
标题翻译：电动工具
公开(公告)号：EP2686951A2
公开(公告)日：2014-01-22
申请号：EP12716675.9
申请日：2012-03-19
申请人： Hitachi Koki Co., Ltd.
发明人： IWATA, Kazutaka , KOIZUMI, Toshiaki
IPC分类号： H02P6/14
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，具有多个定子绕组并且被配置为根据施加到所述多个定子绕组的电压而旋转，感应电压根据所述无刷电动机的旋转而产生; 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。

46. 发明授权

EP2391483B1 Electric boring tool 有权
标题翻译：电钻
公开(公告)号：EP2391483B1
公开(公告)日：2013-06-19
申请号：EP10710459.8
申请日：2010-02-01
申请人： Hitachi Koki CO., LTD.
发明人： OOKUBO, Takahiro , IWATA, Kazutaka
IPC分类号： B25D16/00 , B23B45/02 , B25F5/00 , H02P27/06 , H02P23/03 , H02P27/08 , H02P6/06
CPC分类号： B23B45/02 , B25D16/006 , B25D2211/061 , B25D2222/72 , B25D2250/055 , B25D2250/095 , B25D2250/201 , B25D2250/221 , B25D2250/255 , H02P6/06 , H02P23/03 , H02P27/08 , Y02P70/173

47. 发明公开

EP2467237A1 POWER TOOL 审中-公开
标题翻译：电动工具
公开(公告)号：EP2467237A1
公开(公告)日：2012-06-27
申请号：EP11713527.7
申请日：2011-03-11
申请人： Hitachi Koki Co., Ltd.
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包括电机3，锤4，砧座5，终端工具安装单元51，电源单元24以及控制单元72，。锤（4）通过马达（3）正向和反向旋转驱动。砧座5通过锤子在反方向上转动之后在向前的方向上转动而抵靠砧座撞击锤子4而转动，以获得用于沿向前方向加速的距离。电源单元（24）在第一周期中交替地向马达（3）供应正向电力和反向电力。控制部（72）在流过电动机（3）的电流增加到规定值时，控制电源部（24）以比第一周期短的第二周期交替地供给正向电力和反向电力值。

48. 发明公开

EP2467236A1 POWER TOOL 审中-公开
标题翻译：电动工具
公开(公告)号：EP2467236A1
公开(公告)日：2012-06-27
申请号：EP11712023.8
申请日：2011-03-11
申请人： Hitachi Koki Co., Ltd.
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，终端工具安装单元51，电源单元24，温度检测单元，控制器（72）。锤（4）通过马达（3）可正向和反向驱动旋转。砧座（5）与锤子分开设置并在撞击锤子时旋转。电源单元（24）以第一周期交替地向电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。控制部（72）构成为，在由温度检测部检测出的电动机的温度上升到规定值以上时，控制电源部以比第一周期长的第二周期交替地供给正向电力和反向电力值。

49. 发明公开

EP3213877A1 POWERED WORKING MACHINE 有权转让
标题翻译：有源工作机
公开(公告)号：EP3213877A1
公开(公告)日：2017-09-06
申请号：EP15854049.2
申请日：2015-10-21
申请人： Hitachi Koki Co., Ltd.
发明人： NOGUCHI, Yuta , IWATA, Kazutaka , FUNABASHI, Kazuhiko , SUDO, Tomoaki , INUI, Ken , TADOKORO, Naoki
IPC分类号： B25F5/00 , B25D17/10 , B25D17/24
摘要： In order to provide a powered working machine with which the transmission of vibrations from a housing to a control substrate can be suppressed, this electric working machine 10, which operates a distal tool using power from a brushless motor 30, is configured to have: a control substrate 71 that controls the brushless motor 30; a substrate case 82 that accommodates the control substrate 71; a motor housing 20 and cover 160 that support the substrate case 82; an elastic body 152 that is disposed between the substrate case 82 and the motor housing 20; and an elastic body 153 that is disposed between the substrate case 82 and the cover 160.
摘要翻译：为了提供一种能够抑制从壳体向控制基板的振动传递的电动式作业机械，该电动工作机械10通过来自无刷电机30的动力来操作末端工具，其构成为具有：a 控制无刷电机30的控制基板71; 容纳控制基板71的基板壳体82; 支撑基板壳体82的马达壳体20和盖160; 设置在基板壳体82与电动机壳体20之间的弹性体152; 以及布置在基板壳体82与盖160之间的弹性体153。

50. 发明公开

EP3050207A1 ELECTRIC TOOL 有权转让
标题翻译：电动工具
公开(公告)号：EP3050207A1
公开(公告)日：2016-08-03
申请号：EP14767159.8
申请日：2014-08-26
申请人： Hitachi Koki Co., Ltd.
发明人： KOIZUMI, Toshiaki , TADOKORO, Naoki , IWATA, Kazutaka , NAKAYAMA, Eiji
IPC分类号： H02P3/06 , B25F5/00 , H01H9/06
CPC分类号： H02P1/22 , B25F5/00 , H01H9/06 , H01H9/063 , H01H23/30 , H02P3/06
摘要： An electric tool includes a brushless motor and an output part, which is driven by the brushless motor and to which a tip tool is mounted, and a tumbler switch. The tumbler switch applies, to the control unit, a stop signal for stopping the brushless motor at a neutral position, a forward rotation signal for forward rotating the brushless motor by an operation in a first direction, and a reverse rotation signal for reversely rotating the brushless motor by an operation in a second direction.
摘要翻译：电动工具包括无刷电动机和由无刷电动机驱动并且安装有顶端工具的输出部以及转筒开关。转向开关向控制单元施加用于使无刷电动机停止在中立位置的停止信号，用于通过沿第一方向的操作使无刷电动机正转的正转信号以及用于使无刷电动机反向转动的反转信号通过沿第二方向的操作而无刷马达。

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