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    • 6. 发明授权
    • Fail-safe stop light apparatus
    • 故障安全停灯装置
    • US5504481A
    • 1996-04-02
    • US343217
    • 1994-11-22
    • Dennis N. Wys
    • Dennis N. Wys
    • G08G1/097
    • G08G1/097
    • An apparatus for covering a face of a traffic light with a warning sign as a result of a power failure to the traffic light. A first member is rotatably mounted to one side of the traffic light and a second member is rotatably mounted to the other side of the traffic light. A first electromagnet and a second electromagnet are provided for securing the first and second members in a first position away from the face of the traffic light. A first coil spring and a second coil spring are mounted respectively to the members and to the sides of the traffic light and cause the members to rotate to a second position covering the face of the traffic light upon release of the members by the electromagnets. An electric motor is also provided and is connected to a pair of linkage mechanisms to rewind the first and second members to their first position upon resumption of electrical power to the traffic light.
    • 一种用于由于交通灯电源故障而用警告标志覆盖交通信号灯的面部的装置。 第一构件可旋转地安装在交通信号灯的一侧,并且第二构件可旋转地安装在交通信号灯的另一侧。 提供第一电磁体和第二电磁体用于将第一和第二构件固定在远离交通信号灯的表面的第一位置。 第一螺旋弹簧和第二螺旋弹簧分别安装在交通信号灯的构件和侧面上,并且当电磁体释放构件时,使构件旋转到覆盖交通信号灯的表面的第二位置。 还提供一种电动机并且连接到一对连杆机构,以在恢复对交通信号灯的电力时将第一和第二构件重绕到它们的第一位置。