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    • 4. 发明公开
    • Table saws having integrated control systems
    • 台锯具有集成控制系统
    • EP2687345A1
    • 2014-01-22
    • EP13188627.7
    • 2009-09-25
    • Black & Decker Inc.
    • Schell, Craig AlanUsselman, Robert Alan
    • B27G19/02B27G19/10F16P3/14
    • B27G19/02B27G19/08F16P3/08F16P3/148Y10T83/606Y10T83/773Y10T83/7734Y10T83/85
    • A power tool having an integrated control system includes a workpiece supporting surface, a cutting instrument extendable above the workpiece supporting surface, a guard assembly securable above the workpiece supporting surface for covering at least a portion of the cutting instrument, the guard assembly having a first state for providing a first level of protection and a second state for providing a second level of protection, a motor coupled with the cutting instrument, and a power switch operable for starting the motor for driving the cutting instrument. The power tool includes a control system in communication with the guard assembly for determining if the guard assembly is in the first state or the second state. Before the motor is started, the control system automatically disables the motor if it determines that the guard assembly is in the second state. The control system includes a bypass switch for enabling starting of the motor when the guard assembly is in the second state.
    • 具有集成控制系统的电动工具包括工件支撑表面,可在工件支撑表面上方延伸的切割工具,可固定在工件支撑表面上方的防护组件,用于覆盖切割工具的至少一部分,防护组件具有第一 用于提供第一保护等级的状态和用于提供第二保护等级的第二状态,与切割器械耦合的电机以及可操作用于启动电机以驱动切割器械的电源开关。 动力工具包括与防护组件通信的控制系统,用于确定防护组件是处于第一状态还是第二状态。 在电动机启动之前,如果控制系统确定防护组件处于第二状态,则自动禁用电动机。 控制系统包括旁路开关,用于当防护组件处于第二状态时启动电机。