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    • 2. 发明授权
    • Stalk mounted three function switch assembly having a single multiplexed
output
    • 具有单个多路复用输出的三通功能开关组件
    • US5854458A
    • 1998-12-29
    • US811432
    • 1997-03-03
    • Rajkumar RamamurthyRobert A. BuenzowJames K. Pettit
    • Rajkumar RamamurthyRobert A. BuenzowJames K. Pettit
    • B60Q1/14H01H9/00
    • B60Q1/1469B60Q1/1476
    • A multi-function switch assembly is provided for mounting to the end of a tubular member. The switch assembly provides control information to external devices via control wires contained within within the tubular member. The switch assembly includes a housing defining at least one internal cavity for mounting switch components therein, and also defining an internal bore configured to receive the tubular member. The internal bore communicates with the internal cavity, allowing the control wires to enter the housing. First, second, and third switches are mounted within the internal cavity defined by the housing. A rotating switch actuator actuates the first and second switches which are positioned such that when the rotating actuator is rotated in a first angular direction, the first switch is actuated, and when the first rotating actuator is rotated in a second opposite angular direction, the second switch is actuated. A linear switch actuator actuates the third switch. The first, second, and third switches are electrically connected to output generating circuitry which generates an output signal from which the open or closed state of each contact can be determined.
    • 提供多功能开关组件用于安装到管状构件的端部。 开关组件通过管状构件内部的控制线向外部设备提供控制信息。 开关组件包括壳体,其限定用于将开关部件安装在其中的至少一个内部空腔,并且还限定构造成容纳管状部件的内部孔。 内部孔与内部空腔连通,允许控制线进入外壳。 第一,第二和第三开关安装在由壳体限定的内部空腔内。 旋转开关致动器致动第一和第二开关,其定位成使得当旋转致动器沿第一角度方向旋转时,第一开关被致动,并且当第一旋转致动器沿第二相反角度方向旋转时,第二开关致动器 开关启动。 线性开关执行器致动第三开关。 第一,第二和第三开关电连接到产生输出信号的输出产生电路,从该输出信号可以确定每个触点的打开或关闭状态。