| 摘要 |
PURPOSE:To prevent a head lamp from opening or closing halfway by controlling electrification to a motor even when an operation switch that lights or puts out a retractable head lamp and that at the same time puts the lamp to the illuminating position or the stowage position, is operated instantaneously. CONSTITUTION:A control unit 10 is located between a manual switch 4 and a location detecting member 2. When a movable piece 4b is brought into contact with a terminal 4e, the relay coil 11a of a relay circuit 11 which performs switching operation to give either an open-or close-signal to a retractable head lamp, is excited in accordance with lighting of a head lamp. And a contact 11b is switched from a close-signal terminal 11d to an open-signal terminal 11c. The relay coil 11a turns ON as soon as the moving element 4b is nrought into contact with the terminal 4e, and is connected in series to a transistor 12 that excites the relay coil 11a. The ON-state of the driving transistor 12 is maintained by charge in a condener 14 that has been charged since a self-supported transistor 13 turned ON. |
