公开(公告)号：US07958944B2

公开(公告)日：2011-06-14

申请号：US12405969

申请日：2009-03-17

申请人： Mark W. Lehnert ,  John M. Schiappacasse

发明人： Mark W. Lehnert ,  John M. Schiappacasse

IPC分类号： B25B23/14

CPC分类号： B25B23/1405 ,  B25B21/026

摘要： A discontinuous drive power tool assembly for generating rotational torque includes a spindle having a first end portion and a second end portion. The first end portion of the spindle is configured to engage and rotate an object. The tool assembly also includes a pulse hammer selectively engagable with the second end portion of the spindle, and a motor that includes a motor shaft engagable with the pulse hammer. The motor is configured to rotate the pulse hammer. The tool assembly also includes a rotational position sensor disposed adjacent the motor. The rotational position sensor is configured to measure the rotational position of a second portion of the motor shaft which is opposite the first end portion of the motor shaft during operation of the tool assembly.

摘要翻译： 用于产生旋转扭矩的不连续驱动动力工具组件包括具有第一端部部分和第二端部部分的主轴。 主轴的第一端部构造成接合并旋转物体。 工具组件还包括选择性地与主轴的第二端部接合的脉冲锤，以及包括可与脉冲锤接合的电动机轴的电动机。 电机配置为旋转脉冲锤。 工具组件还包括邻近电动机设置的旋转位置传感器。 旋转位置传感器构造成在工具组件的操作期间测量电动机轴的与电动机轴的第一端部相对的第二部分的旋转位置。

公开(公告)号：US20090255699A1

公开(公告)日：2009-10-15

申请号：US12405980

申请日：2009-03-17

申请人： Mark W. LEHNERT ,  Paul PODSOBINSKI ,  Lawrence J. LEHNERT

发明人： Mark W. LEHNERT ,  Paul PODSOBINSKI ,  Lawrence J. LEHNERT

IPC分类号： B25D15/00

CPC分类号： B25B23/0035 ,  B25B13/06 ,  Y10T279/17051

摘要： A discontinuous drive power tool assembly for generating rotational torque. The tool assembly includes a spindle having a first end portion configured to receive a socket. The first end portion has a primary engaging surface and a tapered surface spaced from a distal end of the first end portion. The primary engaging surface and the tapered surface are configured to engage corresponding surfaces on the socket. The tool assembly also includes a pulse hammer engagable with a second end portion of the spindle that is opposite the first end portion, and a motor including a motor shaft engagable with the pulse hammer, the motor being configured to rotate the pulse hammer.

摘要翻译： 用于产生旋转扭矩的不连续驱动动力工具组件。 工具组件包括具有构造成接收插座的第一端部的主轴。 第一端部具有初级接合表面和与第一端部的远端间隔开的锥形表面。 主接合表面和锥形表面构造成接合插座上的相应表面。 所述工具组件还包括与所述主轴的与所述第一端部相对的第二端部可接合的脉冲锤，以及包括可与所述脉冲锤接合的电动机轴的电动机，所述电动机构造成使所述脉冲锤旋转。

公开(公告)号：US08074732B2

公开(公告)日：2011-12-13

申请号：US12405980

申请日：2009-03-17

申请人： Mark W. Lehnert ,  Paul Podsobinski ,  Lawrence J. Lehnert

发明人： Mark W. Lehnert ,  Paul Podsobinski ,  Lawrence J. Lehnert

IPC分类号： B25B19/00

CPC分类号： B25B23/0035 ,  B25B13/06 ,  Y10T279/17051

摘要： A discontinuous drive power tool assembly for generating rotational torque. The tool assembly includes a spindle having a first end portion configured to receive a socket. The first end portion has a primary engaging surface and a tapered surface spaced from a distal end of the first end portion. The primary engaging surface and the tapered surface are configured to engage corresponding surfaces on the socket. The tool assembly also includes a pulse hammer engagable with a second end portion of the spindle that is opposite the first end portion, and a motor including a motor shaft engagable with the pulse hammer, the motor being configured to rotate the pulse hammer.

摘要翻译： 用于产生旋转扭矩的不连续驱动动力工具组件。 工具组件包括具有构造成接收插座的第一端部的主轴。 第一端部具有初级接合表面和与第一端部的远端间隔开的锥形表面。 主接合表面和锥形表面构造成接合插座上的相应表面。 所述工具组件还包括与所述主轴的与所述第一端部相对的第二端部可接合的脉冲锤，以及包括可与所述脉冲锤接合的电动机轴的电动机，所述电动机构造成使所述脉冲锤旋转。

公开(公告)号：US20090255700A1

公开(公告)日：2009-10-15

申请号：US12405969

申请日：2009-03-17

申请人： Mark W. Lehnert ,  John M. Schiappacasse

发明人： Mark W. Lehnert ,  John M. Schiappacasse

IPC分类号： B25D16/00 ,  B25D9/06 ,  G01L5/24

CPC分类号： B25B23/1405 ,  B25B21/026

摘要： A discontinuous drive power tool assembly for generating rotational torque includes a spindle having a first end portion and a second end portion. The first end portion of the spindle is configured to engage and rotate an object. The tool assembly also includes a pulse hammer selectively engagable with the second end portion of the spindle, and a motor that includes a motor shaft engagable with the pulse hammer. The motor is configured to rotate the pulse hammer. The tool assembly also includes a rotational position sensor disposed adjacent the motor. The rotational position sensor is configured to measure the rotational position of a second portion of the motor shaft which is opposite the first end portion of the motor shaft during operation of the tool assembly.

摘要翻译： 用于产生旋转扭矩的不连续驱动动力工具组件包括具有第一端部部分和第二端部部分的主轴。 主轴的第一端部构造成接合并旋转物体。 工具组件还包括选择性地与主轴的第二端部接合的脉冲锤，以及包括可与脉冲锤接合的马达轴的马达。 电机配置为旋转脉冲锤。 工具组件还包括邻近电动机设置的旋转位置传感器。 旋转位置传感器构造成在工具组件的操作期间测量电动机轴的与电动机轴的第一端部相对的第二部分的旋转位置。

公开(公告)号：US06559613B1

公开(公告)日：2003-05-06

申请号：US10055236

申请日：2001-10-25

申请人： David J. Elliott ,  Mark W. Lehnert

发明人： David J. Elliott ,  Mark W. Lehnert

IPC分类号： H02P700

CPC分类号： B25B21/002 ,  B25B23/14

摘要： An open end power wrench includes an operating scheme that identifies when the item within the drive socket is an item that should be rotated by the drive socket. The method for controlling the tube nut wrench includes the steps of operating the motor to generate an output torque. The method then measures an angle of rotation through which the drive socket rotates. The angle of rotation is then compared with an angle defined by the clearance opening. The output torque is limited to a minimal torque level when the angle of rotation of the drive socket is less than the angle defined by the clearance opening. The method then increases the output torque to an operating torque level when the angle of rotation of the drive socket exceeds the angle defined by the clearance opening.

摘要翻译： 开放式电动扳手包括一种操作方案，用于识别驱动器插座内的物品何时是应由驱动器插座旋转的物品。 用于控制管螺母扳手的方法包括操作马达以产生输出扭矩的步骤。 然后，该方法测量驱动器插座旋转的旋转角度。 然后将旋转角度与由间隙开口限定的角度进行比较。 当驱动器插座的旋转角度小于由间隙开口限定的角度时，输出转矩被限制在最小扭矩水平。 然后，当驱动器插座的旋转角度超过由间隙开口限定的角度时，该方法将输出扭矩增加到操作扭矩水平。

公开(公告)号：US4987806A

公开(公告)日：1991-01-29

申请号：US568537

申请日：1990-08-15

申请人： Mark W. Lehnert

发明人： Mark W. Lehnert

IPC分类号： B25B23/147 ,  B25B23/151

CPC分类号： B25B23/147

摘要： Generally there is provided a nutrunner appliance for automatically driving a nut having an electrical motor, gearing, and a strain gauge to monitor the applied torque. The control system employs analog comparator circuits acting on analog signals from the strain gauge to determine the torque being applied. During operation, the comparator detects a predetermined torque and shifts the motor to a lower velocity to lower the inertia of the system. When the strain gauge output corresponds to the desired final torque, a braking action is applied to the motor to quickly terminate the applied torque.

摘要翻译： 通常，提供了一种用于自动驱动具有电动机，齿轮传动装置和应变计的螺母的保护装置，用于监测所施加的扭矩。 控制系统采用模拟比较器电路作用于应变仪的模拟信号，以确定所施加的转矩。 在操作期间，比较器检测到预定的转矩并将电动机移动到较低的速度以降低系统的惯性。 当应变计输出对应于期望的最终转矩时，制动动作被施加到电动机以快速终止所施加的转矩。

公开(公告)号：US5115701A

公开(公告)日：1992-05-26

申请号：US758403

申请日：1991-08-30

申请人： Mark W. Lehnert

发明人： Mark W. Lehnert

IPC分类号： B25B23/14 ,  B25B23/142

CPC分类号： B25B23/14 ,  B25B23/1425

摘要： Generally there is provided an improved design for a nutrunner appliance drive mechanism and strain gauge mounting. The design for the drive mechanism and strain gauge mounting of the nutrunner appliance facilitates placement of the strain gauge nearer the nut engagement extremity. The drive mechanism includes a shaft member mounted at an angle transverse to the motor shaft, and having a beveled gear at one extremity and a nut engaging member on the other extremity. A strain gauge is mounted between these extremities and provides signals to contacts rotating with the shaft. A brush contact protruding from a removable terminal block is used to pick up the electrical signals from the strain gauge contacts.

摘要翻译： 一般来说，提供了一种改进的设计，用于维护器具驱动机构和应变计安装。 用于驱动机构和应变仪安装的Nutunner设备的设计有利于应变计更靠近螺母接合端的位置。 所述驱动机构包括以横向于所述马达轴的角度安装的轴构件，并且在一个末端具有斜齿轮和在另一个末端具有螺母接合构件。 应变计安装在这些端部之间，并向与轴旋转的触点提供信号。 从可拆卸端子块突出的电刷触点用于拾取应变仪触点的电信号。

公开(公告)号：US06523442B2

公开(公告)日：2003-02-25

申请号：US09732139

申请日：2000-12-07

申请人： Mark W. Lehnert ,  Paul A. Podsobinski

发明人： Mark W. Lehnert ,  Paul A. Podsobinski

IPC分类号： B25B23151

CPC分类号： B25B21/00

摘要： A torque tool assembly having an elongated unitary, cylindrical main housing and including a drive motor subassembly and a gear train subassembly coaxially supported and operatively connected in the cylindrical housing and held in operative engagement by a resilient spring structure while being mechanically, removably locked together in the main housing whereby loosening and/or mis-aligning of the operative connection between the drive motor subassembly and gear train subassembly from vibration and other loads is substantially precluded.