| 摘要 |
PURPOSE:To convey the intent of a driver without delay by feeding a current to a turn signal lamp through a positive characteristic thermistor when a switching means is in off condition, and instantly turning on the lamp. CONSTITUTION:When a turn signal switch 3 is set to, e.g., the 3a side with a power switch 2 being in the closed condition, a current flows into a turn signal lamp 4 through a current coil 6, a perpetually-closed contact point 7, and a positive characteristic thermistor 10, instantly opening the perpetually-closed contact point 7. However, the lamp 4 is turned on, since the resistance value of the positive characteristic thermistor 10 is low at the normal temperature. And, when a current flows in the positive characteristic thermistor 10, it generates heat by itself and is provided with high resistance, causing the lamp 4 to be turned off and, as it becomes hot, flashing occurs by means of a capacitor 8. Thereby, a safe flasher is obtained which can be instantly lit when power is turned on merely by adding a positive characteristic thermistor to a capasistor type flasher. |
