| 摘要 |
PURPOSE: A rotary traffic sign for a bus line number is provided to enable a passenger to identify a bus line number even though the bus line number is hidden by buses. CONSTITUTION: A control unit(4) in a bus line number sign system receives power. A proximity sensor(5) adhered to a door of a bus senses an open and close state of a door. A motor(1-1) mounted through connectors in a fixed bracket(1) is driven with sensed signals of the proximity sensor. [Reference numerals] (AA) Input of 24V power |
