| 摘要 |
<p>PROBLEM TO BE SOLVED: To announce a door opening to vehicles running behind such as motor bicycles and the like, and thereby prevent the occurrence of accidents by energizing an indicator by means of the consistent operation of a turn signal switch and a hazard switch, for example when a taxi driver brings his car to the shoulder of a road for passenger to get on/off. SOLUTION: An indicator 1 is mounted to one side of a vehicle at its rear part. The data terminal D of a holding circuit 4A provided by a control part 4 is connected with a turn signal switch 2, and a clock terminal CP is connected with a hazard switch 3. The indicator 1 is energized when the holding circuit 4A receives an input signal from the hazard switch 3 right after it has received an input signal from the turn signal switch 2.</p> |
