公开(公告)号：US08888566B2

公开(公告)日：2014-11-18

申请号：US13297803

申请日：2011-11-16

申请人： Ryo Sunazuka ,  Hirokatsu Yamamoto ,  Takaaki Osada

发明人： Ryo Sunazuka ,  Hirokatsu Yamamoto ,  Takaaki Osada

IPC分类号： B24B23/00 ,  B25F5/00 ,  B24B41/00

CPC分类号： B25F5/006 ,  B24B41/007

摘要： An improved hand-held power tool is provided which can effectively reduce whirling vibration caused by imbalance of a rotating element. The power tool has a grip that is connected to a tool body and designed to be held by a user and a self-synchronous mechanism that reduces whirling vibration caused in the tool body or the grip when the tool bit is driven. The self-synchronous mechanism is of a phase variable type, having a rotating body which serves as a vibrator and is rotationally driven by a driving source different from a driving source for the tool bit. The self-synchronous mechanism is disposed in the tool body or the grip in which whirling vibration is caused, and arranged such that a phase of vibration of the rotating body is automatically tuned to a phase of the whirling vibration, thereby reducing the whirling vibration.

摘要翻译： 提供了一种改进的手持式电动工具，其可以有效地减少由旋转元件的不平衡引起的旋转振动。 电动工具具有连接到工具主体并被设计成被使用者握持的把手和自动同步机构，当工具头被驱动时，其能够减少在工具主体或把手中引起的旋转振动。 自同步机构是相位可变型的，具有用作振动器的旋转体并且由不同于工具头的驱动源的驱动源旋转驱动。 自同步机构设置在工具主体或其中产生旋转振动的把手中，并且被布置成使得旋转体的振动相位自动调谐到旋转振动的相位，从而减少旋转振动。

公开(公告)号：US09425730B2

公开(公告)日：2016-08-23

申请号：US13980941

申请日：2012-01-19

申请人： Masahiko Sako ,  Hirokatsu Yamamoto ,  Takaaki Osada

发明人： Masahiko Sako ,  Hirokatsu Yamamoto ,  Takaaki Osada

IPC分类号： H02K17/32 ,  G05B9/02 ,  H02P31/00 ,  B25F5/00 ,  H02P7/29 ,  H02P6/06 ,  H02P7/295 ,  H02P23/12 ,  G05B17/02 ,  H02P23/14

CPC分类号： H02P31/00 ,  B25F5/00 ,  G05B17/02 ,  H02P6/06 ,  H02P6/34 ,  H02P7/29 ,  H02P7/295 ,  H02P23/12 ,  H02P23/14

摘要： The present application discloses an apparatus including: a motor model that reflects a characteristic of a motor and includes at least inputs pertaining to a first quantity of state and a second quantity of state and an output pertaining to a third quantity of state; a comparator that calculates a difference between the third quantity of state in an actual motor and the third quantity of state output from the motor model; and an amplifier that amplifies an output of the comparator at a predetermined gain. The first quantity of state in the actual motor is input into the motor model as the first quantity of state, and an output of the amplifier is input into the motor model as the second quantity of state. The apparatus then uses the output of the amplifier as an estimated value of the second quantity of state in the actual motor.

摘要翻译： 本申请公开了一种装置，包括：电机模型，其反映电动机的特性，并且至少包括与第一数量状态和第二数量状态相关的输入和与第三数量状态相关的输出; 计算实际电动机中的第三状态量与从电动机模型输出的第三状态量之间的差的比较器; 以及以预定增益放大比较器的输出的放大器。 将实际电动机的第一状态量作为第一状态量输入到电动机模型中，并且将放大器的输出作为第二数量状态输入到电动机模型中。 然后，该装置使用放大器的输出作为实际电动机中的第二数量状态的估计值。

公开(公告)号：US20130300333A1

公开(公告)日：2013-11-14

申请号：US13980941

申请日：2012-01-19

申请人： Masahiko Sako ,  Hirokatsu Yamamoto ,  Takaaki Osada

发明人： Masahiko Sako ,  Hirokatsu Yamamoto ,  Takaaki Osada

IPC分类号： H02P31/00

CPC分类号： H02P31/00 ,  B25F5/00 ,  G05B17/02 ,  H02P6/06 ,  H02P6/34 ,  H02P7/29 ,  H02P7/295 ,  H02P23/12 ,  H02P23/14

摘要： The present application discloses an apparatus including: a motor model that reflects a characteristic of a motor and includes at least inputs pertaining to a first quantity of state and a second quantity of state and an output pertaining to a third quantity of state; a comparator that calculates a difference between the third quantity of state in an actual motor and the third quantity of state output from the motor model; and an amplifier that amplifies an output of the comparator at a predetermined gain. The first quantity of state in the actual motor is input into the motor model as the first quantity of state, and an output of the amplifier is input into the motor model as the second quantity of state. The apparatus then uses the output of the amplifier as an estimated value of the second quantity of state in the actual motor.

摘要翻译： 本申请公开了一种装置，包括：电机模型，其反映电动机的特性，并且至少包括与第一数量状态和第二数量状态相关的输入和与第三数量状态相关的输出; 计算实际电动机中的第三状态量与从电动机模型输出的第三状态量之间的差的比较器; 以及以预定增益放大比较器的输出的放大器。 将实际电动机的第一状态量作为第一状态量输入到电动机模型中，并且将放大器的输出作为第二数量状态输入到电动机模型中。 然后，该装置使用放大器的输出作为实际电动机中的第二数量状态的估计值。