公开(公告)号：US06945337B2

公开(公告)日：2005-09-20

申请号：US10962565

申请日：2004-10-13

申请人： Kozo Kawai ,  Yoshinori Sainomoto ,  Tatsuhiko Matsumoto ,  Tadashi Arimura ,  Toshiharu Ohashi ,  Hiroshi Miyazaki ,  Hidenori Shimizu ,  Fumiaki Sawano

发明人： Kozo Kawai ,  Yoshinori Sainomoto ,  Tatsuhiko Matsumoto ,  Tadashi Arimura ,  Toshiharu Ohashi ,  Hiroshi Miyazaki ,  Hidenori Shimizu ,  Fumiaki Sawano

IPC分类号： B25B21/00 ,  B25B21/02 ,  B25B23/14 ,  B25B23/145

CPC分类号： B25B21/026 ,  B25B23/1405

摘要： In a power impact tool for fastening a fastening member, a torque for fastening the fastening member can be estimated without using a high-resolution sensor and a high-speed processor. The power impact tool comprises a rotation speed sensor for sensing a rotation speed of a driving shaft of a motor with using a rotation angle of the driving shaft, a rotation angle sensor for sensing a rotation angle of an output shaft to which a bit is fitted in a term between an impact of a hammer to next impact of the hammer, a torque estimator for calculating an impact energy with using an average rotation speed of the driving shaft and for calculating a value of estimated torque for fastening the fastening member which is given as a division of the impact energy by the rotation angle of the output shaft, a torque setter for setting a reference value of torque to be compared, and a controller for stopping the driving of the motor when the value of the estimated torque becomes equal to or larger than a predetermined reference value set by the torque setter.

摘要翻译： 在用于紧固紧固构件的动力冲击工具中，可以估计用于紧固紧固构件的扭矩，而不使用高分辨率传感器和高速处理器。 动力冲击工具包括用于利用驱动轴的旋转角来感测电动机的驱动轴的转速的转速传感器，用于感测安装有钻头的输出轴的旋转角度的旋转角度传感器 在锤之间的冲击与锤的下一次冲击之间的术语中，一个扭矩估计器，用于使用驱动轴的平均转速来计算冲击能量，并且用于计算用于紧固给定的紧固构件的估计扭矩值 作为通过输出轴的旋转角度的冲击能量的分割，用于设定要比较的转矩的基准值的扭矩设定器和当估计转矩的值等于等于的停止马达的驱动的控制器 或大于由扭矩设定器设定的预定基准值。

公开(公告)号：US20050263303A1

公开(公告)日：2005-12-01

申请号：US11126338

申请日：2005-05-11

申请人： Hidenori Shimizu ,  Toshiharu Ohashi ,  Kozo Kawai ,  Yoshinori Sainomoto ,  Fumiaki Sawano ,  Hiroshi Miyazaki ,  Tadashi Arimura ,  Tatsuhiko Matsumoto

发明人： Hidenori Shimizu ,  Toshiharu Ohashi ,  Kozo Kawai ,  Yoshinori Sainomoto ,  Fumiaki Sawano ,  Hiroshi Miyazaki ,  Tadashi Arimura ,  Tatsuhiko Matsumoto

IPC分类号： B25B21/02 ,  B25B23/14 ,  B25B23/147 ,  B25D1/00

CPC分类号： B25B23/1475

摘要： A rotary impact tool can be used in a work especially precision or finishing of fastening is important. The rotary impact tool comprises a rotary driving mechanism including a driving source for rotating a driving shaft, a hammer fixed on the driving shaft, an output shaft to which a driving force is applied by impact blow of the hammer, a torque setting unit used for setting a fastening torque, a processor for calculating fastening torque from impact blow of the hammer, a rotation speed setting unit used for setting rotation speed of the driving shaft, and a controller for rotating the driving shaft of the rotary driving mechanism in a rotation speed set in the rotation speed setting unit and for stopping rotation of the driving shaft of the rotary driving mechanism when the fastening torque calculated in the processor becomes equal to or larger than a reference value of fastening torque previously set in the torque setting unit.

摘要翻译： 旋转冲击工具可用于特别精确的工作或紧固的精加工是重要的。 旋转冲击工具包括：旋转驱动机构，包括用于使驱动轴旋转的驱动源，固定在驱动轴上的锤，通过锤击冲击而施加驱动力的输出轴;扭矩设定单元，用于 设定紧固扭矩，用于计算锤击冲击的紧固扭矩的处理器，用于设定驱动轴的转速的转速设定单元，以及用于使旋转驱动机构的驱动轴以旋转速度旋转的控制器 设置在转速设定单元中，并且当在处理器中计算出的紧固扭矩变得等于或大于预先设置在扭矩设定单元中的紧固扭矩的基准值时，停止旋转驱动机构的驱动轴的旋转。

公开(公告)号：US07155986B2

公开(公告)日：2007-01-02

申请号：US10962621

申请日：2004-10-13

申请人： Kozo Kawai ,  Yoshinori Sainomoto ,  Tatsuhiko Matsumoto ,  Tadashi Arimura ,  Toshiharu Ohashi ,  Hiroshi Miyazaki ,  Hidenori Shimizu ,  Fumiaki Sawano

发明人： Kozo Kawai ,  Yoshinori Sainomoto ,  Tatsuhiko Matsumoto ,  Tadashi Arimura ,  Toshiharu Ohashi ,  Hiroshi Miyazaki ,  Hidenori Shimizu ,  Fumiaki Sawano

IPC分类号： B25B23/14

CPC分类号： G05D17/02 ,  B25B21/02 ,  B25B23/1475

摘要： In a power fastening tool for fastening a fastening member such as a screw or a fastening member, malfunction that driving of a motor is stopped before the fastening member is fastened completely can be prevented. A fastening judger judges that the fastening operation is completed when a value of an estimated torque T for fastening the fastening member becomes larger than a predetermined lower limit value T1 previously set by a user and a value of a torque variation ratio ΔΔT varies from positive to negative. Thus, it is possible to prevent malfunction for stopping driving of a motor even when the value of the torque variation ratio ΔΔT varies from positive to negative due to trouble before the vale of the estimated torque T becomes larger than the lower limit value T1.

摘要翻译： 在用于紧固诸如螺钉或紧固构件的紧固构件的电力紧固工具中，可以防止在紧固构件完全紧固之前马达的驱动停止的故障。 当用于紧固紧固构件的估计扭矩T的值变得大于用户先前设定的预定下限值T 1并且转矩变化率DeltaDeltaT的值从正向变化时，紧固判定器判断紧固操作完成 到负面 因此，即使当扭矩变化比率DeltaDeltaT的值由于估计转矩T的值变得大于下限值T 1之前的故障而从正到负变化时，也可以防止停止马达驱动的故障。

公开(公告)号：US20050263305A1

公开(公告)日：2005-12-01

申请号：US11126351

申请日：2005-05-11

申请人： Hidenori Shimizu ,  Toshiharu Ohashi ,  Kozo Kawai ,  Yoshinori Sainomoto ,  Fumiaki Sawano ,  Hiroshi Miyazaki ,  Tadashi Arimura ,  Tatsuhiko Matsumoto

发明人： Hidenori Shimizu ,  Toshiharu Ohashi ,  Kozo Kawai ,  Yoshinori Sainomoto ,  Fumiaki Sawano ,  Hiroshi Miyazaki ,  Tadashi Arimura ,  Tatsuhiko Matsumoto

IPC分类号： B25B21/02 ,  B25B23/14 ,  B25B23/147 ,  B25D1/00

CPC分类号： B25B21/02 ,  B25B23/1405

摘要： A rotary impact tool can be used continuously for fastening a plurality of fastening members such as screws, bolts or nuts in tight fastening mode. The rotary impact tool comprises a rotary driving mechanism including a motor for rotating a driving shaft, a hammer engaged with the driving shaft, an output shaft to which a driving force is applied by impact blow of the hammer, a main switch operated by a user for controlling fastening operation, and a controller for controlling on and off of the motor. The controller has a normal fastening mode and a tight fastening mode, and a tight fastening mode setting switch used for setting the tight fastening mode is further comprised. When the tight fastening mode setting switch is switched on, the controller continuously drives the rotary driving mechanism so as to perform tight fastening operation continuously.

摘要翻译： 可以连续地使用旋转冲击工具，以紧固方式固定多个紧固构件，例如螺钉，螺栓或螺母。 旋转冲击工具包括旋转驱动机构，其包括用于使驱动轴旋转的马达，与驱动轴接合的马达，通过锤击冲击而施加驱动力的输出轴，由用户操作的主开关 用于控制紧固操作，以及用于控制电动机的接通和断开的控制器。 控制器具有正常的紧固模式和紧固模式，并且还包括用于设定紧固紧固模式的紧固紧固模式设定开关。 当紧固模式设定开关接通时，控制器连续驱动旋转驱动机构，连续进行紧固操作。

公开(公告)号：US20050109520A1

公开(公告)日：2005-05-26

申请号：US10962621

申请日：2004-10-13

申请人： Kozo Kawai ,  Yoshinori Sainomoto ,  Tatsuhiko Matsumoto ,  Tadashi Arimura ,  Toshiharu Ohashi ,  Hiroshi Miyazaki ,  Hidenori Shimizu ,  Fumiaki Sawano

发明人： Kozo Kawai ,  Yoshinori Sainomoto ,  Tatsuhiko Matsumoto ,  Tadashi Arimura ,  Toshiharu Ohashi ,  Hiroshi Miyazaki ,  Hidenori Shimizu ,  Fumiaki Sawano

IPC分类号： B25B23/14 ,  B25B21/02 ,  B25B23/147 ,  G05D17/02 ,  B23Q5/00

CPC分类号： G05D17/02 ,  B25B21/02 ,  B25B23/1475

摘要： In a power fastening tool for fastening a fastening member such as a screw or a fastening member, malfunction that driving of a motor is stopped before the fastening member is fastened completely can be prevented. A fastening judger judges that the fastening operation is completed when a value of an estimated torque T for fastening the fastening member becomes larger than a predetermined lower limit value T1 previously set by a user and a value of a torque variation ratio ΔΔT varies from positive to negative. Thus, it is possible to prevent malfunction for stopping driving of a motor even when the value of the torque variation ratio ΔΔT varies from positive to negative due to trouble before the vale of the estimated torque T becomes larger than the lower limit value T1.

摘要翻译： 在用于紧固诸如螺钉或紧固构件的紧固构件的电力紧固工具中，可以防止在紧固构件完全紧固之前马达的驱动停止的故障。 当用于紧固紧固构件的估计扭矩T的值变得大于用户先前设定的预定下限值T 1并且转矩变化率DeltaDeltaT的值从正向变化时，紧固判定器判断紧固操作完成 到负面 因此，即使当扭矩变化比率DeltaDeltaT的值由于估计转矩T的值变得大于下限值T 1之前的故障而从正到负变化时，也可以防止停止马达驱动的故障。

公开(公告)号：US20050109519A1

公开(公告)日：2005-05-26

申请号：US10962565

申请日：2004-10-13

申请人： Kozo Kawai ,  Yoshinori Sainomoto ,  Tatsuhiko Matsumoto ,  Tadashi Arimura ,  Toshiharu Ohashi ,  Hiroshi Miyazaki ,  Hidenori Shimizu ,  Fumiaki Sawano

发明人： Kozo Kawai ,  Yoshinori Sainomoto ,  Tatsuhiko Matsumoto ,  Tadashi Arimura ,  Toshiharu Ohashi ,  Hiroshi Miyazaki ,  Hidenori Shimizu ,  Fumiaki Sawano

IPC分类号： B25B21/00 ,  B25B21/02 ,  B25B23/14 ,  B23Q5/00

CPC分类号： B25B21/026 ,  B25B23/1405

摘要： In a power impact tool for fastening a fastening member, a torque for fastening the fastening member can be estimated without using a high-resolution sensor and a high-speed processor. The power impact tool comprises a rotation speed sensor for sensing a rotation speed of a driving shaft of a motor with using a rotation angle of the driving shaft, a rotation angle sensor for sensing a rotation angle of an output shaft to which a bit is fitted in a term between an impact of a hammer to next impact of the hammer, a torque estimator for calculating an impact energy with using an average rotation speed of the driving shaft and for calculating a value of estimated torque for fastening the fastening member which is given as a division of the impact energy by the rotation angle of the output shaft, a torque setter for setting a reference value of torque to be compared, and a controller for stopping the driving of the motor when the value of the estimated torque becomes equal to or larger than a predetermined reference value set by the torque setter.

公开(公告)号：US07570017B2

公开(公告)日：2009-08-04

申请号：US11599416

申请日：2006-11-15

申请人： Yoshinori Sainomoto ,  Toshiharu Ohashi ,  Hiroshi Miyazaki

发明人： Yoshinori Sainomoto ,  Toshiharu Ohashi ,  Hiroshi Miyazaki

IPC分类号： H02J7/00

CPC分类号： H02J7/0026 ,  H01M2/1022 ,  H01M10/44 ,  H02J7/0021 ,  H02J7/0031

摘要： A battery pack for a power tool has a less-current consuming over-discharge protection. The battery pack includes a battery stack composed of a plurality of series connected secondary cells, and a discharge detector configured to monitor a cell voltage across each of the secondary cells and to provide a discharge stop signal when any one of the cell voltages becomes lower than a predetermined threshold. The discharge stop signal is fed to deenergize the power tool. The discharge detector is composed of a voltage monitor and a power controller. The voltage monitor includes a plurality of comparators and a plurality of constant voltage elements each providing a constant voltage determining the threshold. Each comparator is configured to compare each cell voltage with the threshold to give a comparison result. The voltage monitor is energized by the battery stack to provide the discharge stop signal based upon the comparison results. The power controller is configured to energize the voltage monitor when the battery pack is connected to the power tool. Thus, the discharge detector is protected from consuming the energy of the battery pack while being disconnected from the power tool.

摘要翻译： 用于电动工具的电池组具有较少的电流消耗的过放电保护。 电池组包括由多个串联连接的二次电池组成的电池组，以及放电检测器，其被配置为监测每个二次电池上的电池电压，并且当任何一个电池电压变得低于时，提供放电停止信号 预定阈值。 进给放电停止信号以使电动工具失电。 放电检测器由电压监视器和电源控制器组成。 电压监视器包括多个比较器和多个恒定电压元件，每个恒定电压元件提供确定阈值的恒定电压。 每个比较器被配置为将每个单元电压与阈值进行比较以给出比较结果。 电压监视器由电池组通电，以根据比较结果提供放电停止信号。 电源控制器配置为在电池组连接到电动工具时为电压监视器通电。 因此，放电检测器被保护以在与电动工具断开的同时消耗电池组的能量。

公开(公告)号：US07659692B2

公开(公告)日：2010-02-09

申请号：US11599415

申请日：2006-11-15

申请人： Yoshinori Sainomoto ,  Toshiharu Ohashi ,  Hiroshi Miyazaki

发明人： Yoshinori Sainomoto ,  Toshiharu Ohashi ,  Hiroshi Miyazaki

IPC分类号： H02J7/00

CPC分类号： H02J7/0026 ,  H02J2007/0037

摘要： A battery pack for a power tool of self-contained over-charge protection is proposed. The battery pack includes a battery stack composed of a plurality of series connected secondary cells, and a charge terminal connected through a charge current path to the battery stack for flowing a charge current from a charger. The battery pack includes an interrupter inserted in the charge current path, and an over-charge detector which detects a cell voltage across each of the secondary cells and actuates the interrupter to open the charge current path when any one of the cell voltages becomes higher than a predetermined threshold (VTH3). Thus, even if the charger fails to limit the charge current, the battery pack can itself protect the secondary cells from being over-charged.

摘要翻译： 提出了一种用于独立过充电保护电动工具的电池组。 电池组包括由多个串联连接的二次电池组成的电池组，以及通过充电电流路径连接到电池组的充电端子，用于使来自充电器的充电电流流动。 电池组包括插入在充电电流路径中的断流器，以及过充电检测器，其检测每个二次电池上的电池电压，并且当电池电压中的任何一个电压变得高于电池电压时，致动断流器以打开充电电流路径 预定阈值（VTH3）。 因此，即使充电器不能限制充电电流，电池组本身可以保护二次电池不被过度充电。

公开(公告)号：US20070108940A1

公开(公告)日：2007-05-17

申请号：US11599415

申请日：2006-11-15

申请人： Yoshinori Sainomoto ,  Toshiharu Ohashi ,  Hiroshi Miyazaki

发明人： Yoshinori Sainomoto ,  Toshiharu Ohashi ,  Hiroshi Miyazaki

IPC分类号： H02J7/00

CPC分类号： H02J7/0026 ,  H02J2007/0037

摘要： A battery pack for a power tool of self-contained over-charge protection is proposed. The battery pack includes a battery stack composed of a plurality of series connected secondary cells, and a charge terminal connected through a charge current path to the battery stack for flowing a charge current from a charger. The battery pack includes an interrupter inserted in the charge current path, and an over-charge detector which detects a cell voltage across each of the secondary cells and actuates the interrupter to open the charge current path when any one of the cell voltages becomes higher than a predetermined threshold (VTH3). Thus, even if the charger fails to limit the charge current, the battery pack can itself protect the secondary cells from being over-charged.

摘要翻译： 提出了一种用于独立过充电保护电动工具的电池组。 电池组包括由多个串联连接的二次电池组成的电池组，以及通过充电电流路径连接到电池组的充电端子，用于使来自充电器的充电电流流动。 电池组包括插入在充电电流路径中的断流器，以及过充电检测器，其检测每个二次电池上的电池电压，并且当电池电压中的任何一个电压变得高于电池电压时，致动断流器以打开充电电流路径 预定阈值（V TH3）。 因此，即使充电器不能限制充电电流，电池组本身可以保护二次电池不被过度充电。

公开(公告)号：US20070108941A1

公开(公告)日：2007-05-17

申请号：US11599416

申请日：2006-11-15

申请人： Yoshinori Sainomoto ,  Toshiharu Ohashi ,  Hiroshi Miyazaki

发明人： Yoshinori Sainomoto ,  Toshiharu Ohashi ,  Hiroshi Miyazaki

IPC分类号： H02J7/00

CPC分类号： H02J7/0026 ,  H01M2/1022 ,  H01M10/44 ,  H02J7/0021 ,  H02J7/0031

摘要： A battery pack for a power tool has a less-current consuming over-discharge protection. The battery pack includes a battery stack composed of a plurality of series connected secondary cells, and a discharge detector configured to monitor a cell voltage across each of the secondary cells and to provide a discharge stop signal when any one of the cell voltages becomes lower than a predetermined threshold. The discharge stop signal is fed to deenergize the power tool. The discharge detector is composed of a voltage monitor and a power controller. The voltage monitor includes a plurality of comparators and a plurality of constant voltage elements each providing a constant voltage determining the threshold. Each comparator is configured to compare each cell voltage with the threshold to give a comparison result. The voltage monitor is energized by the battery stack to provide the discharge stop signal based upon the comparison results. The power controller is configured to energize the voltage monitor when the battery pack is connected to the power tool. Thus, the discharge detector is protected from consuming the energy of the battery pack while being disconnected from the power tool.

摘要翻译： 用于电动工具的电池组具有较少的电流消耗的过放电保护。 电池组包括由多个串联连接的二次电池组成的电池组，以及放电检测器，其被配置为监测每个二次电池上的电池电压，并且当任何一个电池电压变得低于时，提供放电停止信号 预定阈值。 进给放电停止信号以使电动工具失电。 放电检测器由电压监视器和电源控制器组成。 电压监视器包括多个比较器和多个恒定电压元件，每个恒定电压元件提供确定阈值的恒定电压。 每个比较器被配置为将每个单元电压与阈值进行比较以给出比较结果。 电压监视器由电池组通电，以根据比较结果提供放电停止信号。 电源控制器配置为在电池组连接到电动工具时为电压监视器通电。 因此，放电检测器被保护以在与电动工具断开的同时消耗电池组的能量。