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    • 4. 发明授权
    • Pressure sensitive alarm component
    • 压敏报警组件
    • US06177876B1
    • 2001-01-23
    • US09274283
    • 1999-03-22
    • Stephen Krueger
    • Stephen Krueger
    • G08B2100
    • G08B13/1472
    • A Pressure Sensitive Alarm Component is provided and includes a pressure plate and a base plate. Within the base plate are the pressure plate truss assemblies, the weight transfer assembly, and the sliding switch assembly. The weight transfer assembly includes a load transfer arm which moves back and forth as weight is placed on or removed from the pressure plate and a dial to adjust the position of the load transfer arm. The sliding switch assembly includes a sliding contact support arm which is rigidly linked to the load transfer arm. The sliding switch assembly further includes a plurality of stationary contacts incorporated into a base plate, and two sliding contacts mounted on the sliding contact support arm. The sliding contacts may move along the stationary contacts and open and close the control circuit as they come in out of contact with different pairs of stationary contacts. Once an object is place on the pressure, if the sliding contacts are not in contact with a pair of stationary contacts, the sliding contacts may be repositioned to bring them into contact with a pair of stationary contacts by turning the dial to move the load transfer arm and the sliding contact support arm. Once contact is made, an LED will light up and the alarm may be activated. If the object is thereafter removed, the alarm will sound.
    • 提供压敏报警组件,包括压板和底板。 在底板内是压板桁架组件,重量传递组件和滑动开关组件。 重量传递组件包括负载传递臂,当重物被放置在压板上或从压板移除时,负载​​传递臂来回移动,以及用于调节负载传送臂的位置的转盘。 滑动开关组件包括刚性地连接到负载传递臂的滑动接触支撑臂。 滑动开关组件还包括结合到基板中的多个固定触点和安装在滑动触点支撑臂上的两个滑动触点。 滑动触点可以沿着固定触点移动,并且当控制电路进入与不同的固定触点对接触时打开和闭合控制电路。 一旦物体放置在压力上,如果滑动触点不与一对固定触点接触,则滑动触点可以重新定位,以使它们与一对固定触点接触,通过转动拨盘来移动负载传输 臂和滑动接触支撑臂。 一旦接触,LED将亮起,并且可能会激活警报。 如果物体此后被移除,则会发出警报。