公开(公告)号：US20050219785A1

公开(公告)日：2005-10-06

申请号：US11095728

申请日：2005-03-31

申请人： Bhanuprasad Gorti ,  Charles Bradenbaugh ,  William Hilsher

发明人： Bhanuprasad Gorti ,  Charles Bradenbaugh ,  William Hilsher

IPC分类号： B25C1/06 ,  B25D1/00 ,  H01H47/00

CPC分类号： B25C1/06 ,  H01H47/004

摘要： A driving tool, such as a fastening tool, with a driver, a motor, a flywheel driven by the motor, an actuator, an actuator member that is movable by the actuator, a trigger switch that is moveable by a trigger between an unactuated state and an actuated state, and a contact trip switch that is moveable by a contact trip between an unactuated state and an actuated state. The controller does not include power switches for controlling the operation of the motor and the actuator, but rather employs microswitches and control logic to determine when to activate the motor assembly and the actuator.

摘要翻译： 诸如紧固工具的驱动工具，具有驱动器，马达，由马达驱动的飞轮，致动器，可由致动器移动的致动器构件，触发开关，其可由触发器在未致动状态 和致动状态，以及可在未致动状态和致动状态之间通过接触跳闸来移动的接触脱扣开关。 控制器不包括用于控制电动机和致动器的操作的电源开关，而是采用微动开关和控制逻辑来确定何时启动电动机组件和致动器。

公开(公告)号：US20070207703A1

公开(公告)日：2007-09-06

申请号：US11747655

申请日：2007-05-11

申请人： Uday Deshpande ,  Bhanuprasad Gorti ,  Shailesh Waikar ,  William Hilsher

发明人： Uday Deshpande ,  Bhanuprasad Gorti ,  Shailesh Waikar ,  William Hilsher

IPC分类号： B24B51/00

CPC分类号： B24B23/03

摘要： A hand held orbital sander has a housing having an electronically commutated motor disposed therein and an orbit mechanism disposed beneath the housing. A motor controller is coupled to the motor. The motor controller changes the speed of at which it runs the motor from an idle speed to a sanding speed upon the motor speed dropping from idle speed to an idle speed threshold value and changes the speed at which it runs the motor from sanding speed to idle speed upon the motor speed increasing from sanding speed to a sanding speed threshold value. The sander may have a mechanical brake that brakes the orbit mechanism and the motor controller also dynamically brakes the motor.

摘要翻译： 手持轨道式打磨机具有设置在其中的电子换向马达的壳体和设置在壳体下方的轨道机构。 马达控制器耦合到马达。 电动机控制器将电机从怠速运行的速度从怠速转速到打磨速度，将其从怠速转速降至怠速阈值，并将其运行电机的速度从打磨速度改变为空转 电机速度从砂磨速度增加到砂磨速度阈值。 砂光机可以具有制动轨道机构的机械制动器，并且马达控制器还动态地制动马达。

公开(公告)号：US20050245182A1

公开(公告)日：2005-11-03

申请号：US11103928

申请日：2005-04-12

申请人： Uday Deshpande ,  Bhanuprasad Gorti ,  Jason Melvin ,  Gregory Rice ,  David Wikle ,  Shailesh Waikar ,  William Hilsher

发明人： Uday Deshpande ,  Bhanuprasad Gorti ,  Jason Melvin ,  Gregory Rice ,  David Wikle ,  Shailesh Waikar ,  William Hilsher

IPC分类号： B24B23/00 ,  B24B23/03

CPC分类号： B24B23/03

摘要： A power tool is a “low profile” power tool, that is the overall height of the power tool is sufficiently small that a user can grasp the top of the power tool with the user's hand and the hand will be positioned relative close to the bottom of the power tool compared with existing power tools. The low profile power tool uses a low profile motor having a diameter to lamination height ratio of at least 2:1. In an aspect of the invention, the motor is an electronically commutated “pancake” style motor. In an aspect of the invention, the power tool is a random orbital sander or an orbital sander having a motor that provides at least 40 watts of power. In an aspect of the invention, the sander has a mechanical brake that brakes the orbital mechanism and the motor is dynamically braked.

摘要翻译： 电动工具是“薄型”电动工具，即电动工具的整体高度足够小，使得用户可以用用户的手抓住电动工具的顶部，并且手将相对靠近底部定位 的电动工具与现有的电动工具相比。 低轮廓动力工具使用具有至少2:1的直径与层压高度比的低轮廓马达。 在本发明的一个方面，电动机是电子换向的“煎饼”型电动机。 在本发明的一个方面，电动工具是随机轨道打磨机或具有提供至少40瓦特功率的电动机的轨道磨光机。 在本发明的一个方面，砂光机具有制动轨道机构的机械制动器，并且马达被动态地制动。

公开(公告)号：US20070287365A1

公开(公告)日：2007-12-13

申请号：US11743170

申请日：2007-05-02

申请人： Uday Deshpande ,  Bhanuprasad Gorti ,  Jason Melvin ,  Gregory Rice ,  David Wikle ,  Shailesh Waikar ,  William Hilsher

发明人： Uday Deshpande ,  Bhanuprasad Gorti ,  Jason Melvin ,  Gregory Rice ,  David Wikle ,  Shailesh Waikar ,  William Hilsher

IPC分类号： B24B23/00

CPC分类号： B24B23/03

摘要： A power tool in accordance with an embodiment of the invention has a motor driving a member, a switch coupled across windings of the motor that dynamically brakes the motor, and a mechanical brake that brakes speed of the member. In an aspect, the combined dynamic and mechanical braking brakes speed of the member to a desired speed in no more than about two second. In an aspect, the motor is an electronically commutated motor and the power tool includes a controller that electronically commutates the motor by switching switches that switch power to the motor in an electronic commutation sequence and switches the switches to electronically brake the motor.

摘要翻译： 根据本发明的实施例的电动工具具有驱动部件的马达，耦合在马达的绕组上的开关，其动态地制动马达，以及制动该部件的速度的机械制动器。 在一方面，组合的动态和机械制动将所述构件的速度制动到期望速度不超过约2秒。 在一方面，电动机是电子换向电动机，电动工具包括控制器，该控制器通过以电子换向顺序切换电力切换到电动机的开关来电动地换向电动机，并将开关切换到电动地制动电动机。

公开(公告)号：US20050245183A1

公开(公告)日：2005-11-03

申请号：US11103929

申请日：2005-04-12

申请人： Uday Deshpande ,  Bhanuprasad Gorti. ,  Shailesh Waikar ,  William Hilsher

发明人： Uday Deshpande ,  Bhanuprasad Gorti. ,  Shailesh Waikar ,  William Hilsher

IPC分类号： B24B23/00 ,  B24B23/03

CPC分类号： B24B23/03

摘要： A hand held orbital sander has a housing having an electronically commutated motor disposed therein and an orbit mechanism disposed beneath the housing. A motor controller is coupled to the motor. The motor controller changes the speed of at which it runs the motor from an idle speed to a sanding speed upon the motor speed dropping from idle speed to an idle speed threshold value and changes the speed at which it runs the motor from sanding speed to idle speed upon the motor speed increasing from sanding speed to a sanding speed threshold value. The sander may have a mechanical brake that brakes the orbit mechanism and the motor controller also dynamically brakes the motor.

摘要翻译： 手持轨道式打磨机具有设置在其中的电子换向马达的壳体和设置在壳体下方的轨道机构。 马达控制器耦合到马达。 电动机控制器将电机从怠速运行的速度从怠速转速到打磨速度，将其从怠速转速降至怠速阈值，并将其运行电机的速度从打磨速度改变为空转 电机速度从砂磨速度增加到砂磨速度阈值。 砂光机可以具有制动轨道机构的机械制动器，并且马达控制器还动态地制动马达。

公开(公告)号：US20060081386A1

公开(公告)日：2006-04-20

申请号：US11254146

申请日：2005-10-19

申请人： Qiang Zhang ,  Uday Deshpande ,  Shailesh Waikar ,  Daniel Puzio ,  Craig Schell ,  William Hilsher ,  Joshua West

发明人： Qiang Zhang ,  Uday Deshpande ,  Shailesh Waikar ,  Daniel Puzio ,  Craig Schell ,  William Hilsher ,  Joshua West

IPC分类号： E21B15/04

CPC分类号： B25B21/00 ,  B23D59/001 ,  B25F5/00

摘要： A control system is provided for use in a power tool. The control system includes: a rotational rate sensor having a resonating mass and a controller electrically connected to the rotational rate sensor. The rotational rate sensor detects lateral displacement of the resonating mass and generates a signal indicative of the detected lateral displacement, such that the lateral displacement is directly proportional to a rotational speed at which the power tool rotates about an axis of the rotary shaft. Based on the generated signal, the controller initiates a protective operation to avoid further undesirable rotation of the power tool. The control scheme employed by the power tool may initiate different protective operations for different tool conditions.

摘要翻译： 提供一种用于电动工具的控制系统。 控制系统包括：具有谐振质量的旋转速率传感器和与旋转速率传感器电连接的控制器。 旋转速率传感器检测共振体的横向位移并产生表示检测到的横向位移的信号，使得横向位移与动力工具围绕旋转轴的轴线旋转的转速成正比。 基于产生的信号，控制器启动保护操作以避免电动工具的进一步不希望的旋转。 电动工具采用的控制方案可以针对不同的工具条件启动不同的保护操作。