Safety mechanism for a rotary hammer
    31.
    发明申请
    Safety mechanism for a rotary hammer 有权
    旋转锤的安全机构

    公开(公告)号:US20080202786A1

    公开(公告)日:2008-08-28

    申请号:US12150459

    申请日:2008-04-28

    IPC分类号: B23Q5/00

    CPC分类号: B25F5/00 Y10T408/14

    摘要: An improved method is provided for controlling a power tool having a rotary shaft. The method includes: disposing an inertial mass in a housing of the power tool, such that the inertial mass is freely rotatable about an axis of rotation which is axially aligned with the rotary shaft; monitoring rotational motion of the power tool in relation to the inertial mass during operation of the power tool; and activating a protective operation based on the rotational motion of the power tool in relation to the inertial mass.

    摘要翻译: 提供了一种用于控制具有旋转轴的电动工具的改进方法。 该方法包括:将惯性质量块放置在动力工具的壳体内,使得惯性质量块能够围绕与旋转轴轴向对准的旋转轴线自由旋转; 在所述电动工具的操作期间监测所述动力工具相对于所述惯性质量块的旋转运动; 并且基于所述动力工具相对于所述惯性质量块的旋转运动来启动保护操作。

    Wireless asset monitoring and security system using user identification tags
    32.
    发明授权
    Wireless asset monitoring and security system using user identification tags 有权
    无线资产监控和使用用户识别标签的安全系统

    公开(公告)号:US07319395B2

    公开(公告)日:2008-01-15

    申请号:US10997163

    申请日:2004-11-24

    IPC分类号: G08B13/14

    摘要: An asset monitoring and security system includes at least one asset and at least one user identification device assigned a unique identifier and operable to transmit an identification signal embodying the identifier over a wireless communications link. A data store maintains lists of the assets, users authorized to use the assets, and privileges associated with the assets for each of the authorized users. A control unit is adapted to receive identification signals from the assets and user identification devices and monitor positions of the assets and user identification devices within a defined area based on the identification signals. The control unit communicates with the data store and is further operable to initiate an alarm event when privileges associated with a given authorized user for a given asset are exceeded. Each of the assets includes a lock-out mechanism that impedes use of the asset when the lock-out mechanism is activated.

    摘要翻译: 资产监测和安全系统包括至少一个资产和至少一个分配了唯一标识符的用户识别装置,并且可操作以通过无线通信链路发送体现该标识符的识别信号。 数据存储维护资产的列表,授权使用资产的用户以及与每个授权用户的资产相关的权限。 控制单元适于从资产和用户识别装置接收识别信号,并基于识别信号监视在限定区域内的资产和用户识别装置的位置。 控制单元与数据存储器进行通信,并且还可操作以在超出与给定授权用户相关联的特权时启动报警事件。 每个资产包括锁定机制,当锁定机制被激活时,该机制阻止资产的使用。

    Cable lock for security system
    33.
    发明授权
    Cable lock for security system 失效
    电缆锁为安全系统

    公开(公告)号:US07274293B2

    公开(公告)日:2007-09-25

    申请号:US11010732

    申请日:2004-12-13

    IPC分类号: G08B13/14

    CPC分类号: E05B45/005

    摘要: A cable lock device includes a housing, a tampering subsystem, and a cable having a first end and a second end. The first end is attached to the housing and is electrically connected to the tampering subsystem and the second end is selectively attached to the housing. In addition, a switch is disposed within the housing and is electrically connected to the tampering subsystem. The switch is movable between an open state and a closed state to indicate when the second end is attached to the housing. The tampering subsystem includes control circuitry that monitors the position of the switch and the status of the cable to detect removal of the second end from the housing and/or severance of the cable. The control circuitry relays status information of the cable lock device to a control unit via a transmitter to alert a property owner of a security breach.

    摘要翻译: 电缆锁定装置包括壳体,篡改子系统以及具有第一端和第二端的电缆。 第一端附接到壳体并且电连接到篡改子系统,并且第二端选择性地附接到壳体。 此外,开关设置在壳体内并且电连接到篡改子系统。 开关可在打开状态和关闭状态之间移动,以指示第二端何时附接到外壳。 篡改子系统包括控制电路,其监视开关的位置和电缆的状态,以检测第二端从壳体的移除和/或电缆的断开。 控制电路通过发射器将电缆锁定装置的状态信息中继到控制单元,以警告财产所有者的安全漏洞。

    Battery charge indicator
    34.
    发明申请
    Battery charge indicator 审中-公开
    电池充电指示灯

    公开(公告)号:US20060251958A1

    公开(公告)日:2006-11-09

    申请号:US11410114

    申请日:2006-04-24

    IPC分类号: H01M2/10 H01M10/46 H02J7/00

    摘要: A system including a cordless device having device terminals, a battery pack detachably engageable to the cordless device, and a charger electrically connectable to the battery pack for charging the battery pack. The battery pack has a housing, at least one cell disposed within the housing, pack terminals connectable to the device terminals, and a movable member disposed within the housing. The member is movable between first and second positions to indicate a condition of the battery pack. At least one of the cordless device and the charger have a protrusion for moving the member between the first and second positions.

    摘要翻译: 一种系统,包括具有装置端子的无绳装置,可拆卸地接合到无绳装置的电池组,以及可电连接到电池组的充电器的充电器的充电器的充电器的系统。 电池组具有壳体,设置在壳体内的至少一个单元,可连接到设备端子的封装端子以及设置在壳体内的可动构件。 该构件可在第一和第二位置之间移动,以指示电池组的状态。 无绳装置和充电器中的至少一个具有用于在第一和第二位置之间移动构件的突起。

    Rotary tool
    35.
    发明申请
    Rotary tool 有权
    旋转工具

    公开(公告)号:US20060124331A1

    公开(公告)日:2006-06-15

    申请号:US10526578

    申请日:2003-09-10

    IPC分类号: B23Q5/00

    摘要: A hand held motor driven electrically powered tool, in particular a rotary hammer, comprising a spindle (40) for rotatingly driving a tool or bit (68), a spindle rotary drive train (14, 5, 10) for rotatingly driving the spindle (40) and an arrangement for detecting blocking events (16, 17). Blocking events occur when the tool or bit of the tool become rotationally fixed in the material being bored in which case the rotary drive on the spindle from the motor causes the tool housing to rotate in a user's grip. According to a first aspect of the invention an overload clutch (14) is provided in the spindle rotary drive train for transmitting rotary drive to the spindle below a predetermined torque and slipping above the predetermined torque arranged such that the overload clutch cuts off rotary drive to the spindle, for example by reducing the predetermined torque at which the overload clutch (14) slips when a blocking event is detected so as to cut off rotary drive to the spindle in response to a blocking event being detected. According to a second aspect of the invention there is provided a mode change mechanism (45, 47, 49, 43) for selectively disengaging a clutch (10, 7) so as to cut off the rotary drive to the spindle (40) and the clutch is disengaged when a blocking event is detected so as to cut off rotary drive to the spindle in response to a blocking event being detected.

    摘要翻译: 一种手持马达驱动的电动工具,特别是旋转锤,包括用于旋转地驱动工具或钻头(68)的主轴(40),用于旋转地驱动主轴的主轴旋转传动系(14,5,10) 40)和用于检测阻塞事件(16,17)的装置。 当工具的工具或钻头被旋转地固定在钻孔材料中时,发生堵塞事件,在这种情况下,来自马达的主轴上的旋转驱动器使得工具壳体在使用者的把手中旋转。 根据本发明的第一方面,一种过载离合器(14)设置在主轴旋转传动系中,用于将转动驱动传递到预定转矩以下的预定转矩,并且在预定扭矩以上滑动,使得过载离合器将旋转驱动器切断 主轴,例如通过减小当检测到阻塞事件时过载离合器(14)滑动的预定扭矩,以便响应于检测到阻塞事件而切断到主轴的旋转驱动。 根据本发明的第二方面,提供了一种用于选择性地分离离合器(10,7)以便切断到主轴(40)的旋转驱动器的模式改变机构(45,47,49,43),并且 当检测到阻塞事件时,离合器分离,以便响应于检测到阻塞事件而切断到主轴的旋转驱动。

    Method and apparatus for manually selecting battery charging process

    公开(公告)号:US6154008A

    公开(公告)日:2000-11-28

    申请号:US238408

    申请日:1999-01-26

    摘要: A method for charging a rechargeable battery pack includes providing a charger having first and second charging processes, and manually selecting one of the first and second charging processes. The charging method may include a step for indicating status or end of the selected one charging process. The first charging process may include the steps of providing a fast charging current, indicating end of the fast charging current and providing an equalization current. The second charging process may include the steps of providing a fast charging current, subsequently providing an equalization current and indicating end of equalization current. The second charging process may also include a temperature checking step. Further disclosed is a battery charging apparatus including a charger for charging a battery and having first and second charging processes, and a switch connected to the charger for manually selecting one of the first and second charging processes. The charger may include a microprocessor. Further, the apparatus may include a display output and/or sound output connected to the charger. The display output and/or sound output may indicate status or end of the selected one charging process. The display output may comprise a light bulb, a light emitting diode and/or a liquid crystal display. The sound output may comprise a speaker and/or a piezo-electric device.

    Microprocessor based motor control
    37.
    发明授权
    Microprocessor based motor control 失效
    基于微处理器的电机控制

    公开(公告)号:US4628233A

    公开(公告)日:1986-12-09

    申请号:US784702

    申请日:1985-10-04

    申请人: Robert Bradus

    发明人: Robert Bradus

    IPC分类号: H02P25/14 H02P7/28

    摘要: A microprocessor based motor controller which provides open loop speed control at low conduction angles, closed loop speed control at high conduction angles, and a smooth transition between open loop and closed loop zones. In open loop, the motor speed is selected and is permitted to vary with applied load. In closed loop, the motor speed is held constant, substantially irrespective of load. In the transition zone, the motor is operated in a hybrid open loop, closed loop fashion.Anti-kickback protection is also provided based on a percentage change in the motor's rotational period.

    摘要翻译: 一种基于微处理器的电机控制器,其以低导通角提供开环速度控制,在高导通角度下进行闭环速度控制,以及开环和闭环区域之间的平滑过渡。 在开环中,选择电机速度,并允许随施加的负载而变化。 在闭环中,马达速度保持恒定,基本上与负载无关。 在过渡区域,电动机以混合开环,闭环方式运行。 还可以根据电机转动周期的百分比变化提供防反冲保护。

    Digital blade adjustment read-out for a portable power tool
    38.
    发明授权
    Digital blade adjustment read-out for a portable power tool 失效
    数字刀片调整读取便携式电动工具

    公开(公告)号:US4272821A

    公开(公告)日:1981-06-09

    申请号:US76705

    申请日:1979-09-18

    申请人: Robert Bradus

    发明人: Robert Bradus

    摘要: A digital read-out system for a portable power tool that is adapted to provide a precise digital reading of the depth adjustment of the blade of the tool. The system includes a position encoding device that is coupled to the blade adjustment mechanism of the tool. The encoder provides position feedback information to a microprocessor which is programmed to calculate the amount of blade adjustment made relative to a preselected reference positioned. In the preferred embodiment, a mercury switch is provided which is interrogated by the microprocessor to determine the orientation of the tool so that the orientation of the digital display can be controlled accordingly. In this manner, the display automatically appears rightside up even when the blade adjustment is made with the tool upside down. A mode select switch is also provided for selecting between English and Metric units.

    摘要翻译: 一种用于便携式电动工具的数字读出系统,其适于提供工具的刀片深度调整的精确数字读数。 该系统包括耦合到工具的叶片调节机构的位置编码装置。 编码器向微处理器提供位置反馈信息,该微处理器被编程为计算相对于预定参考位置进行的叶片调整量。 在优选实施例中,提供水银开关,其由微处理器询问以确定工具的取向,使得可以相应地控制数字显示器的取向。 以这种方式,即使当刀具上下颠倒进行刀片调整时,显示器也会自动出现。 还提供了模式选择开关,用于在英制和公制单位之间进行选择。

    SAFETY MECHANISM FOR A ROTARY HAMMER
    40.
    发明申请
    SAFETY MECHANISM FOR A ROTARY HAMMER 有权
    旋转锤的安全机制

    公开(公告)号:US20100263891A1

    公开(公告)日:2010-10-21

    申请号:US12765436

    申请日:2010-04-22

    IPC分类号: B23Q5/10

    CPC分类号: B25F5/00 Y10T408/14

    摘要: An improved method is provided for controlling a power tool having a rotary shaft. The method includes: disposing an inertial mass in a housing of the power tool, such that the inertial mass is freely rotatable about an axis of rotation which is axially aligned with the rotary shaft; monitoring rotational motion of the power tool in relation to the inertial mass during operation of the power tool; and activating a protective operation based on the rotational motion of the power tool in relation to the inertial mass.

    摘要翻译: 提供了一种用于控制具有旋转轴的电动工具的改进方法。 该方法包括:将惯性质量块放置在动力工具的壳体内,使得惯性质量块能够围绕与旋转轴轴向对准的旋转轴线自由旋转; 在所述电动工具的操作期间监测所述动力工具相对于所述惯性质量块的旋转运动; 并且基于所述动力工具相对于所述惯性质量块的旋转运动来启动保护操作。