| 摘要 |
<p>PURPOSE:To prevent a key from being left in a key cylinder after an engine of a motorcycle is stopped. CONSTITUTION:In the state where a key is pulled out, an ignition switch 6 is in turned-OFF state, and the part between the contact pieces 9c and 9b of a lead switch 9 is in turned-ON state, and a capacitor 17 is in charged state. When the key is inserted into a key cylinder, the part between the contact pieces 9c and 9a of the lead switch 9 is turned ON, and when the ignition switch 6 is turned ON, the capacitor 17 electric-discharges through a diode 19 and a resistor 20. When the ignition switch 6 is turned OFF, if the key is left in a key cylinder, the charged electric current of the capacitor 17 flows through the capacitor 17, buzzer 21, and a resistor 14, and the buzzer 21 operates to generate alarm.</p> |
