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1. 发明授权

US08659244B2 Variable speed switch and electric power tool with the variable speed switch mounted thereto 有权
公开(公告)号：US08659244B2
公开(公告)日：2014-02-25
申请号：US13225995
申请日：2011-09-06
申请人： Masahiro Watanabe , Takuya Kusakawa , Hidenori Nagasaka
发明人： Masahiro Watanabe , Takuya Kusakawa , Hidenori Nagasaka
IPC分类号： B60K6/36
摘要： A variable speed switch includes a switch main body portion which is accommodated in a housing of an electric power tool and mounted to the housing so as to be capable of relative movement, and a load sensor which is provided in the switch main body portion and capable of outputting an electric signal in proportion to the amount of distortion caused by a pressing force. The switch operating portion is mounted on the surface of the housing so as to be capable of relative displacement with respect to the housing and transmits a pressing force applied to the switch operating portion to the load sensor, with the maximum displacement amount of the switch operating portion being set to equal to or less than 5 mm.

2. 发明授权

US08698430B2 Variable speed switch and electric power tool with the variable speed switch mounted thereto 有权
标题翻译：变速开关和电动工具，安装有变速开关
公开(公告)号：US08698430B2
公开(公告)日：2014-04-15
申请号：US13225995
申请日：2011-09-06
申请人： Masahiro Watanabe , Takuya Kusakawa , Hidenori Nagasaka
发明人： Masahiro Watanabe , Takuya Kusakawa , Hidenori Nagasaka
IPC分类号： B60K6/36
CPC分类号： H02K7/14 , B25F5/001 , B25F5/02 , H01H9/04 , H01H9/061 , H01H2009/048
摘要： A variable speed switch includes a switch main body portion which is accommodated in a housing of an electric power tool and mounted to the housing so as to be capable of relative movement, and a load sensor which is provided in the switch main body portion and capable of outputting an electric signal in proportion to the amount of distortion caused by a pressing force. The switch operating portion is mounted on the surface of the housing so as to be capable of relative displacement with respect to the housing and transmits a pressing force applied to the switch operating portion to the load sensor, with the maximum displacement amount of the switch operating portion being set to equal to or less than 5 mm.
摘要翻译：变速开关包括开关主体部分，该开关主体部分容纳在电动工具的壳体中并且能够相对运动地安装到壳体;以及负载传感器，其设置在开关主体部分中并且能够与由按压力引起的变形量成比例地输出电信号。开关操作部分安装在壳体的表面上以能够相对于壳体相对移动，并且将施加到开关操作部分的按压力传递到负载传感器，其中开关的最大位移量操作部分被设定为等于或小于5mm。

3. 发明授权

US08075155B2 Electric power tool 有权
标题翻译：电动工具
公开(公告)号：US08075155B2
公开(公告)日：2011-12-13
申请号：US12289787
申请日：2008-11-04
申请人： Masahiro Watanabe , Jiro Suzuki , Takuya Kusakawa
发明人： Masahiro Watanabe , Jiro Suzuki , Takuya Kusakawa
IPC分类号： B25B23/18
CPC分类号： B25F5/00 , Y10T307/832 , Y10T307/944
摘要： An electric power tool, which comprises a motor that drives a tool, a power source unit that applies voltage to the motor, a main switching circuit that makes/breaks an electrical connection between the power source unit and the motor, an illuminator that illuminates a work spot, a switching device that electrically connects the illuminator to the power source unit, and an OR circuit that is electrically connected to terminals of the motor to the base terminal is provided. The OR circuit electrically connects one of the motor terminals at which a voltage is higher to the base terminal.
摘要翻译：一种电动工具，其包括驱动工具的电动机，向所述电动机施加电压的电源单元，使所述电源单元和所述电动机之间的电连接断开的主开关电路;照明器提供了将照明器电连接到电源单元的开关装置和与电动机的端子电连接到基座端子的“或”电路。 OR电路将电压较高的电动机端子之一电连接到基座端子。

4. 发明申请

US20090128062A1 Electric power tool 有权
标题翻译：电动工具
公开(公告)号：US20090128062A1
公开(公告)日：2009-05-21
申请号：US12289787
申请日：2008-11-04
申请人： Masahiro Watanabe , Jiro Suzuki , Takuya Kusakawa
发明人： Masahiro Watanabe , Jiro Suzuki , Takuya Kusakawa
IPC分类号： H05B37/02
CPC分类号： B25F5/00 , Y10T307/832 , Y10T307/944
摘要： An electric power tool, which comprises a motor that drives a tool, a power source unit that applies voltage to the motor, a main switching circuit that makes/breaks an electrical connection between the power source unit and the motor, an illuminator that illuminates a work spot, a switching device that electrically connects the illuminator to the power source unit, and an OR circuit that is electrically connected to terminals of the motor to the base terminal is provided. The OR circuit electrically connects one of the motor terminals at which a voltage is higher to the base terminal.
摘要翻译：一种电动工具，其包括驱动工具的电动机，向所述电动机施加电压的电源单元，使所述电源单元和所述电动机之间的电连接断开的主开关电路;照明器提供了将照明器电连接到电源单元的开关装置和与电动机的端子电连接到基座端子的“或”电路。 OR电路将电压较高的电动机端子之一电连接到基座端子。

5. 发明授权

US08981680B2 Electric power tool 有权
标题翻译：电动工具
公开(公告)号：US08981680B2
公开(公告)日：2015-03-17
申请号：US13624263
申请日：2012-09-21
申请人： Hidekazu Suda , Takuya Kusakawa , Jun Ota
发明人： Hidekazu Suda , Takuya Kusakawa , Jun Ota
IPC分类号： F04D15/00 , H05B37/00 , G05B5/00 , B25F5/02 , B25F5/00
CPC分类号： B25F5/021 , B25F5/00
摘要： An electric power tool of the present invention includes: a lighting unit; a motor that drives a tool element; a setting switch that is turned ON/OFF to change an operation mode setting and a lighting mode setting; a setting switching unit that changes the operation mode setting and the lighting mode setting corresponding to a manner of operation provided to the setting switch; a motor control unit that controls the motor according to a control method for one of the operation modes currently set by the setting switching unit; and a lighting control unit that controls the lighting unit corresponding to one of the lighting modes currently set by the setting switching unit. When the setting switch is turned on, the setting switching unit changes one of the operation mode setting and the lighting mode setting corresponding to a duration time of an ON state of the setting switch.
摘要翻译：本发明的电动工具包括：照明单元; 驱动工具元件的电机; 设置开关，其被开/关以改变操作模式设置和点亮模式设置; 设置切换单元，其改变对应于提供给设置开关的操作方式的操作模式设置和照明模式设置; 电动机控制单元，其根据由所述设定切换单元当前设定的一种操作模式的控制方法控制所述电动机; 以及照明控制单元，其控制与由设置切换单元当前设置的一种照明模式相对应的照明单元。当设置开关打开时，设置切换单元改变对应于设置开关的ON状态的持续时间的操作模式设置和点亮模式设置中的一个。

6. 发明申请

US20120279743A1 ELECTRIC POWER TOOL 审中-公开
标题翻译：电动工具
公开(公告)号：US20120279743A1
公开(公告)日：2012-11-08
申请号：US13519041
申请日：2010-12-20
申请人： Hidekazu Suda , Ryosuke Ito , Takuya Kusakawa
发明人： Hidekazu Suda , Ryosuke Ito , Takuya Kusakawa
IPC分类号： B25F5/00
CPC分类号： B25F5/001 , A01D34/90 , H02P3/06 , H02P29/10
摘要： An electric power tool includes an electric motor, a rotation speed detection device, a brake device, and a rotation speed-based activation device. The electric motor generates a driving force to rotate an object to be driven. The rotation speed detection device detects a rotation speed of the electric motor. The brake device executes braking control to brake the electric motor. The rotation speed-based activation device activates the brake device when the rotation speed detected by the rotation speed detection device becomes equal to or less than a specified rotation speed, which is arbitrarily set, after a stop command to shut off electric current supply to the electric motor is issued.
摘要翻译：电动工具包括电动机，转速检测装置，制动装置和基于转速的转动装置。电动机产生驱动力以旋转被驱动物体。转速检测装置检测电动机的转速。制动装置执行制动控制以制动电动机。当旋转速度检测装置检测到的转速变为等于或小于任意设定的规定转速时，基于转速的启动装置启动制动装置，该停止命令关闭向发电机。

7. 发明授权

US08294399B2 Motor controller and electric tool having the same 失效
标题翻译：电机控制器和电动工具具有相同的功能
公开(公告)号：US08294399B2
公开(公告)日：2012-10-23
申请号：US12734645
申请日：2008-12-01
申请人： Jiro Suzuki , Takuya Kusakawa
发明人： Jiro Suzuki , Takuya Kusakawa
IPC分类号： H02P1/04 , H02P1/24 , H02P25/14 , H02P7/06 , H02P6/00 , E21B15/04 , E21B3/00 , B25D13/00
CPC分类号： B25F5/00 , B25B21/02 , H02P6/12 , H02P6/24 , H02P6/28 , H02P29/032
摘要： A motor controller comprises a processor selectively outputting an on-signal to either one of an upper arm switching element and a lower arm switching element based upon a detected position by the position sensor, gate drivers inputting a driving voltage to the gates of the switching elements by shifting a level of the on-signal from the processor to the upper arm switching element and a bootstrap capacitor configured to be charged while the upper arm switching element is turned off and to behave as a voltage supply for the gate driver while the upper arm switching element is turned on. The processor is configured to reduce a set duty ratio when the set duty ratio is equal to or larger than a predetermined value (e.g. 80 percents) and a rotational position of the motor does not change for a first predetermined time. This motor controller can prevent the switching element from a burnout even if the motor is locked.
摘要翻译：电动机控制器包括：处理器基于位置传感器的检测位置，选择性地将接通信号输出到上臂开关元件和下臂开关元件中的任一个，栅极驱动器将驱动电压输入到开关元件的栅极通过将来自处理器的导通信号的电平移动到上臂开关元件和被配置为在上臂开关元件关闭时被充电并且作为栅极驱动器的电压供应而起作用的自举电容器，而上臂开关元件导通。处理器被配置为当设定的占空比等于或大于预定值（例如80％）时减小设定的占空比，并且电动机的旋转位置在第一预定时间内不改变。即使电机被锁定，该电机控制器也可以防止开关元件烧坏。

8. 发明授权

US09314914B2 Power tool 有权
标题翻译：电动工具
公开(公告)号：US09314914B2
公开(公告)日：2016-04-19
申请号：US13509436
申请日：2010-10-29
申请人： Hidekazu Suda , Takuya Kusakawa
发明人： Hidekazu Suda , Takuya Kusakawa
IPC分类号： B25F5/00 , B25F5/02
CPC分类号： B25F5/00 , B25F5/026
摘要： A power tool includes a motor, a rotating speed adjusting switch, a regulating member, and a control unit. The regulating member regulates an upper limit position when the switch is displaced by manipulation by a user into an upper limit of any one of stages by the manipulation by the user. The control unit controls an amount of a current flowing to the motor by a duty ratio based on a manipulation amount of the switch, thereby increasing the rotating speed of the motor in accordance with an increase of the manipulation amount. A predetermined set number of duty ratios are set for each of the stages. A proportion of the predetermined set number of duty ratios to a manipulable amount of the switch is higher in a first stage having the lowest upper limit position than in the stages other than the first stage.
摘要翻译：电动工具包括电动机，转速调节开关，调节构件和控制单元。当通过用户的操纵将开关移动到任何一个阶段的上限中时，调节构件调节上限位置。控制单元通过基于开关的操作量的占空比来控制流向电动机的电流量，从而根据操作量的增加来增加电动机的转速。为每个级设定预定的设定数量的占空比。在具有最低上限位置的第一阶段中，与第一阶段以外的阶段相比，预定设定数量的占空比与开关的可操作量的比例较高。

9. 发明申请

US20100308764A1 MOTOR CONTROLLER AND ELECTRIC TOOL HAVING THE SAME 失效
标题翻译：具有电机控制器和电动工具
公开(公告)号：US20100308764A1
公开(公告)日：2010-12-09
申请号：US12734645
申请日：2008-12-01
申请人： Jiro Suzuki , Takuya Kusakawa
发明人： Jiro Suzuki , Takuya Kusakawa
IPC分类号： H02P7/06
CPC分类号： B25F5/00 , B25B21/02 , H02P6/12 , H02P6/24 , H02P6/28 , H02P29/032
摘要： A motor controller comprises a processor selectively outputting an on-signal to either one of an upper arm switching element and a lower arm switching element based upon a detected position by the position sensor, gate drivers inputting a driving voltage to the gates of the switching elements by shifting a level of the on-signal from the processor to the upper arm switching element and a bootstrap capacitor configured to be charged while the upper arm switching element is turned off and to behave as a voltage supply for the gate driver while the upper arm switching element is turned on. The processor is configured to reduce a set duty ratio when the set duty ratio is equal to or larger than a predetermined value (e.g. 80 percents) and a rotational position of the motor does not change for a first predetermined time. This motor controller can prevent the switching element from a burnout even if the motor is locked.
摘要翻译：电动机控制器包括：处理器基于位置传感器的检测位置，选择性地将接通信号输出到上臂开关元件和下臂开关元件中的任一个，栅极驱动器将驱动电压输入到开关元件的栅极通过将来自处理器的导通信号的电平移动到上臂开关元件和被配置为在上臂开关元件关闭时被充电并且作为栅极驱动器的电压供应而起作用的自举电容器，而上臂开关元件导通。处理器被配置为当设定的占空比等于或大于预定值（例如80％）时减小设定的占空比，并且电动机的旋转位置在第一预定时间内不改变。即使电机被锁定，该电机控制器也可以防止开关元件烧坏。

10. 发明授权

US09073186B2 Electric power tool 有权
标题翻译：电动工具
公开(公告)号：US09073186B2
公开(公告)日：2015-07-07
申请号：US13601185
申请日：2012-08-31
申请人： Takuya Kusakawa
发明人： Takuya Kusakawa
IPC分类号： H02K17/32 , B25B21/00 , B25F5/00 , B25B23/147
CPC分类号： B25B21/00 , B25B23/147 , B25F5/00
摘要： An electric power tool includes a motor, a current detection unit, an operating portion, a current threshold setting unit and a control unit. The current threshold setting unit sets a current threshold so as to change in accordance with changes in a motor current which flows when the motor is started as usual until a predetermined period of time elapses since the control unit has started driving of the motor. When the predetermined period of time has elapsed, the current threshold setting unit fixes the current threshold to a constant value which corresponds to a set torque.
摘要翻译：电动工具包括电动机，电流检测单元，操作部分，电流阈值设定单元和控制单元。电流阈值设定单元设定电流阈值，以便随着电动机从电动机起动时流过的电动机电流的变化而改变，直到从控制单元开始驱动电动机到经过预定时间段为止。当经过预定时间段时，当前阈值设定单元将当前阈值固定为对应于设定转矩的常数值。

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